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<title>Alexandrite Encyclopedia</title>
<description>For educational purposes only. Questions and information about alexandrite, cats eye and chrysoberyl gemstones. Do not try to sell your jewelry of gems.</description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-059</link>
<category domain="www.dmoz.org">Consumer Information/Jewelry and Gemstones</category>
<copyright>Copyright 2006-2008 Alexandrite.net</copyright>
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<lastBuildDate>Tue,  9 Apr 2013 09:47:47 +0200</lastBuildDate>
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<pubDate>Tue,  9 Apr 2013 09:47:47 +0200</pubDate>
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<item>
<title>Is alexandrite the most expensive gemstone in the world?</title>
<description><![CDATA[I got a collection only 2 (two) pieces of extraordinary gemstone maestro
painted by God Almighty, very beautiful, artistic and unbelievable
Entitled "Glory of Uncle Sam USA", comes with a certificate of
authenticity from a reliable laboratory institution that Explains the
origin and natural.Limited limited edition of God's creation, millions
of years ago of God messages painted and printed here, God wants America
to prosper and succeed millions of years as painted in exceptional
gemstone with American mascot "Glory of Uncle Sam USA". Painting titled
man "Monalisa" could reach millions of dolla]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-459</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-459</guid>
<author>usm_new88@yahoo.com</author>
<pubDate>Tue,  9 Apr 2013 08:24:45 +0200</pubDate>
</item>
<item>
<title>How much will a typical one carat alexandrite gemstone cost?</title>
<description><![CDATA[natural Alexandrite 14.69 carat 15.01* 12.85* 8.30mm stepcut colour yelloish green changing to browinsh pink i have  and interrested in selling it out please contact if interrested pawan.sana.singh@gmail.com]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-458</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-458</guid>
<author>pawan.sana.singh@gmail.com</author>
<pubDate>Mon, 18 Mar 2013 13:31:54 +0100</pubDate>
</item>
<item>
<title>Is alexandrite the most expensive gemstone in the world?</title>
<description><![CDATA[     Hi
I am intersted in collecting rare stones and I found a stone ,look like the alexandrite , how I can be sure ?
the stone's color is green in daylight , but at night under electronic light the color change to dark red ?
this are somme photos , if you intersted I can send it to you ..so if you can please help me to define it and tell me if it a GEMstone and how much it worth?
Note : the stone frome outside and service is fossil .]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-458-00001</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-458-00001</guid>
<author>hah-444-2010@hotmail.com</author>
<pubDate>Tue, 22 Jan 2013 19:50:31 +0100</pubDate>
</item>
<item>
<title>Deciding Between Natural and Synthetic Alexandrite</title>
<description><![CDATA[Hello Everyone,
My boyfriend (soon to be fiancee) and I are looking at getting an Alexandrite as the stone for our engagement ring.  We are currently considering both a natural stone or a synthetic one, most likely from Chatham.  We are looking at about a $6000 absolute ceiling on the entire ring, and $3000 at the preferred price range.  From what we have seen, it looks like for this price we could get no more than a 1/2 carat natural Alexandrite, where as we could get a carat plus synthetic.  Does that sound appropriate, or should we be looking in other places (we live in the bay area of California)?  What are the things we should consider other than size in deciding between a natural and synthetic stone?  Do we have to be careful if we do get a natural stone to ensure that the stone was ethically mined?  If we do get a synthetic stone, would it look as good as a natural one?
Thank you for the help!]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-416</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-416</guid>
<author>Jocelyn</author>
<pubDate>Fri, 18 Feb 2011 02:27:32 +0100</pubDate>
</item>
<item>
<title>re: advice</title>
<description><![CDATA[I have the destroyed ring. the stone measure 14mm]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-383</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-383</guid>
<author>kathygg</author>
<pubDate>Tue, 30 Nov 2010 18:37:20 +0100</pubDate>
</item>
<item>
<title>need advice as quickly as possible</title>
<description><![CDATA[My home burned completely. I lost two Alexandrite rings.
I lived in Turkey in 1962. My father was an officer and bought
from a very reputable jeweler.  I believe they were authentic
Alexandrites.  What are the chances that I am correct?]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-382</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-382</guid>
<author>kathygg</author>
<pubDate>Tue, 30 Nov 2010 18:30:50 +0100</pubDate>
</item>
<item>
<title>Book review: Russian Alexandrites</title>
<description><![CDATA[Please read  an excellent review by  Richard W. Wise, G.G.
Richard W. Wise is the former Gemology Columnist for National Jeweler. His articles on gemstones have appeared in Gems &amp; Gemology, Colored Stone, Gemkey, Gem Market News and many other publications. His book Secrets Of The Gem Trade (The Connoisseur’s Guide To Precious Gemstones was published in 2003.
]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-362-00001</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-362-00001</guid>
<author>Andrei Vesselovski</author>
<pubDate>Sat, 27 Nov 2010 22:21:00 +0100</pubDate>
</item>
<item>
<title>Book review: Russian Alexandrites</title>
<description><![CDATA[Please read  an excellent review by  Richard W. Wise, G.G.
Richard W. Wise is the former Gemology Columnist for National Jeweler. His articles on gemstones have appeared in Gems &amp; Gemology, Colored Stone, Gemkey, Gem Market News and many other publications. His book Secrets Of The Gem Trade (The Connoisseur’s Guide To Precious Gemstones was published in 2003.
]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-362-00003</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-362-00003</guid>
<author>Andrei Vesselovski</author>
<pubDate>Sat, 27 Nov 2010 22:21:00 +0100</pubDate>
</item>
<item>
<title>Re: New Book:  Russian Alexandrites by Dr. Karl Schmetzer</title>
<description><![CDATA[Looking forward it! For those who don't know, this is the book]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-375-00001</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-375-00001</guid>
<author>Alan Javore</author>
<pubDate>Sat, 27 Nov 2010 22:18:00 +0100</pubDate>
</item>
<item>
<title>New Book:  Russian Alexandrites by Dr. Karl Schmetzer</title>
<description><![CDATA[I am sure everyone will be interested in this.  I have just received a review copy of Russian Alexandrites and will be posting a review on my blog: GemWise:  http://www.rwwise.com/blog early next week.
Cheers,
Richard]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-375</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-375</guid>
<author>Gemwise</author>
<pubDate>Sun, 10 Oct 2010 16:21:00 +0200</pubDate>
</item>
<item>
<title>Book Announcement: Russian Alexandrites by Karl Schmetzer</title>
<description><![CDATA[Russian Alexandrites
Language: English
ISBN 978-3-510-65262-4, bound, price: 34.80 €
About The Book
In this book the author present an historical overview of emerald mining in the Urals, the discovery of Russian alexandrites in the Uralian emerald mines, the naming and historical use of alexandrites and their appearance and display in mineralogical museums and the gem trade. Morphology and twinning of rough alexandrite is described for single crystals, single contact twins and cyclic twins (trillings). Mineralogical and gemmological properties are thoroughly explained and numerous photo-micrographs of inclusions and growth patterns in faceted samples are presented.
Chatoyancy and asterism of alexandrite and chrysoberyl from Russia and Sri Lanka are also described. A further chapter deals with characteristic growth patterns of Russian, other natural and synthetic alexandrites. Colorimetric data of Russian alexandrites and green chrysoberyls are explained using the CIELAB colour space, and the distinction between these varieties is explained. A chapter on trace element chemistry and locality determination rounds off the book.
Book is illustrated with more than 200 colour figures and photographs, addresses mineralogists, gemmologists, historians, mineral and gem collectors as well as all members of the gem trade. An extensive appendix containing lists of historical names, a time table and numerous references provides valuable information on Russian alexandrites for all researchers in the mineralogical and gemmological fields as well as for gemmological laboratories, jewellers and gem dealers.
About the Author
Dr. Schmetzer is an independent gemmology researcher and consultant based in Petershausen, Germany, near Munich. He specializes in the mineralogy of gemstones, characterization of natural and synthetic gem materials, description of new gemstones and new gem localities, causes of colour and colour changes produced through treatment, and differentiation of natural gemstones from their synthetic counterparts.
As prolific author, Dr. Schmetzer has produced nearly 400 papers and articles, mostly in English and German, which have been published in the major gemmological journals, including Gems &amp; Gemology, Journal of Gemmology, Neues Jahrbuch fur Mineralogie Monatshefte.
He is a member of the editorial board of the American, Australina, and French gemmological journals. He has been invited to lecture at special gemmological conferences in the United States, China, Brazil, Austria and Switzerland, and he is the German delegate to the International Gemmological Conference.
How to Order
For more information, please visit http://www.schweizerbart.de/publications/detail/artno/181201002]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-361</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-361</guid>
<author>Andrei Vesselovski</author>
<pubDate>Wed, 11 Aug 2010 05:12:00 +0200</pubDate>
</item>
<item>
<title>Book Announcement: Russian Alexandrites by Karl Schmetzer</title>
<description><![CDATA[Russian Alexandrites
Language: English
ISBN 978-3-510-65262-4, bound, price: 34.80 €
About The Book
In this book the author present an historical overview of emerald mining in the Urals, the discovery of Russian alexandrites in the Uralian emerald mines, the naming and historical use of alexandrites and their appearance and display in mineralogical museums and the gem trade. Morphology and twinning of rough alexandrite is described for single crystals, single contact twins and cyclic twins (trillings). Mineralogical and gemmological properties are thoroughly explained and numerous photo-micrographs of inclusions and growth patterns in faceted samples are presented.
Chatoyancy and asterism of alexandrite and chrysoberyl from Russia and Sri Lanka are also described. A further chapter deals with characteristic growth patterns of Russian, other natural and synthetic alexandrites. Colorimetric data of Russian alexandrites and green chrysoberyls are explained using the CIELAB colour space, and the distinction between these varieties is explained. A chapter on trace element chemistry and locality determination rounds off the book.
Book is illustrated with more than 200 colour figures and photographs, addresses mineralogists, gemmologists, historians, mineral and gem collectors as well as all members of the gem trade. An extensive appendix containing lists of historical names, a time table and numerous references provides valuable information on Russian alexandrites for all researchers in the mineralogical and gemmological fields as well as for gemmological laboratories, jewellers and gem dealers.
About the Author
Dr. Schmetzer is an independent gemmology researcher and consultant based in Petershausen, Germany, near Munich. He specializes in the mineralogy of gemstones, characterization of natural and synthetic gem materials, description of new gemstones and new gem localities, causes of colour and colour changes produced through treatment, and differentiation of natural gemstones from their synthetic counterparts.
As prolific author, Dr. Schmetzer has produced nearly 400 papers and articles, mostly in English and German, which have been published in the major gemmological journals, including Gems &amp; Gemology, Journal of Gemmology, Neues Jahrbuch fur Mineralogie Monatshefte.
He is a member of the editorial board of the of the British, French and Australian gemmological journals. He has been invited to lecture at special gemmological conferences in the United States, China, Brazil, Austria and Switzerland, and he is the German delegate to the International Gemmological Conference.
How to Order
For more information, please visit http://www.schweizerbart.de/publications/detail/artno/181201002]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-362</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-362</guid>
<author>Andrei Vesselovski</author>
<pubDate>Wed, 11 Aug 2010 05:12:00 +0200</pubDate>
</item>
<item>
<title>Re: Alexandrite World Occurrences</title>
<description><![CDATA[
Anyone heard of alexandrite deposit located in the gemological district of Malacacheta, about 30 km far from Malacacheta city, state of Minas Gerais, Brazil?
One occurrences is near by my town and it is also provided into localities section]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-335-00002</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-335-00002</guid>
<author>dinesh_golechha</author>
<pubDate>Sat,  3 Jul 2010 20:17:07 +0200</pubDate>
</item>
<item>
<title>Chronological History of Alexandrite</title>
<description><![CDATA[i have one alexanderite stone 14.39 ct giving seven colors with lab report from gemology testing
lab from new delhi india. what price can be given.
love malhotra
lovelyenterprises@gmail.com]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-359</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-359</guid>
<author>lovelyenterprises@gmail.com</author>
<pubDate>Mon, 14 Jun 2010 07:51:41 +0200</pubDate>
</item>
<item>
<title>Definition of Alexandrite cat's eye</title>
<description><![CDATA[Star Ruby's (Harshil Jeweller's of Mumbai, India) and Alfo Gems of Bangkok, Thailand are marketing "Cat's Eye Alexandrite loose gems. Star Ruby says they are all true Chrysoberyl Alexandrite Color Change Cat's Eyes from Orissa Mines there in India, while Alfogems claims theirs are from Brazil. Both sell through websites as well as on EBay. Both claim their 3+ carat gems are true color change Alexandrite Cat's Eyes (Chrysoberyl). I would like your opinion on these two marketers of Alexandrite Cat's Eyes. I have bought from Star Ruby once on a Star Ruby, but have never bought from Alfo Gems.]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-356</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-356</guid>
<author>mo.woody@hotmail.com</author>
<pubDate>Wed, 14 Apr 2010 07:34:44 +0200</pubDate>
</item>
<item>
<title>Different colors of alexandrite</title>
<description><![CDATA[Alexandrite occurs in a wide range of colors, but color change resembling fine emerald (green) and ruby (red), depending on the light source is so rare, that most people have never seen one. However, even lower quality alexandrite should change colors from khaki or yellowish green or green in daylight moving to brownish, purple, reddish-purple or red under  incandescent light. Mixed light should produce either a grayer color or flashes of the green, purple, and sometimes red or yellow.
Good quality alexandrite is teal, emerald, or blue-green under natural daylight or fluorescent lighting that ideally changes to purple-red or red under regular incandescent light. Often a slightly grey, blue/violet/purple is seen.
If your stone changes color from purple in daylight to greenish-blue under incandescent light, then instead of genuine alexandrite, you own either a synthetic stone or some other gemstone variety which changes color. It could be sapphire or spinel, although it's very unlikely. I would recommend obtaining a gemstone identification certificate for your gemstone from a reputable laboratory. The most well known gemological laboratories are listed at:  Where can I test and appraise my alexandrite?]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-347-00001</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-347-00001</guid>
<author>Marisa Spano</author>
<pubDate>Thu,  6 Aug 2009 11:37:53 +0200</pubDate>
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</item>
<item>
<title>Alexandrite Myths, Legends and Lore</title>
<description><![CDATA[Alexandrite - the symbolism of red &amp; green colors.  The red flag symbolized insurrection during the revolutions, but in spite of its association with violence (and blood), the russian word for red also means “beautiful”. Green  color  commonly associated with  nature and harmony.  Does it mean that in Russia, Alexandrite can symbolize "beatiful nature"?]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-321-00001</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-321-00001</guid>
<author>info@davidwein.com</author>
<pubDate>Wed, 29 Jul 2009 12:08:58 +0200</pubDate>
</item>
<item>
<title>Chrysoberyl Species and Variety</title>
<description><![CDATA[
I have an Alexandrite from what the jewellers tell me,, it is actually purple in daylight and greenish-blue under a light.. why is it? the color change is opposite from green to purple?. It is also a fairly big stone. I love it, cannot get a straight answer anywhere.. where can I go?]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-347</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-347</guid>
<author>franladouceur@yahoo.ca</author>
<pubDate>Fri,  3 Jul 2009 04:45:00 +0200</pubDate>
</item>
<item>
<title>The Alexandrite Laser</title>
<description><![CDATA[I have got white patches on my leg from laser.  Can anybody tell me what I can do to make this spot go away faster or if they will go away ever?]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-160-00003</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-160-00003</guid>
<author>honeys78@yahoo.com</author>
<pubDate>Wed, 10 Jun 2009 18:49:53 +0200</pubDate>
</item>
<item>
<title>Alexandrite  substitutes</title>
<description><![CDATA[Alexandrite is chrysoberyl BeAl2O4 with Cr3+ as an impurity, its colour depends on the type of illumination; in fluorescent light blue dominates, while red is predominant when viewed in light from a tungsten lamp. This is the so called "alexandrite effect". The most desirable colour change is rich blue–green to a deep raspberry red, and the shade of the colour can vary.
The impurity that produces the colour in alexandrite is Cr3+, but the ion sits in a different crystal environment and hence experiences a different ligand field. Synthetic alexandrite gemstones have been produced since 1973 and patented by Creative Crystals Inc of San Ramon, California.
]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-324-00004</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-324-00004</guid>
<author>Michael Vanevski</author>
<pubDate>Fri,  1 May 2009 14:48:00 +0200</pubDate>
</item>
<item>
<title>Color change garnet vs Alexandrite</title>
<description><![CDATA[Without gemological testing, color change garnets and alexandrites can be very difficult to distinguish. Both alexandrite and color change garnet can exhibit an intense color change. The main difference is their responses to different light sources. While the colors of alexandrite are similar in daylight and fluorescent light color change garnets are distinctly green or bluish under fluorescent light but more blue gray or even lavender in daylight.
Color change garnets are notable for their color change throughout the day as a function of their sensitivity to the different color temperatures of morning and late afternoon light. To appreciate the full range of color change in these stones, one needs to observe the stones under early morning light, fluorescent light, late afternoon sunlight, and incandescent light. The best color change garnets are from Bekily in Madagascar and the new deposit in Chavia, Kenya.
]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-341-00002</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-341-00002</guid>
<author>David Weinberg</author>
<pubDate>Sun,  5 Apr 2009 01:40:00 +0200</pubDate>
<enclosure type="image/jpeg" url="http://www.alexandrite.net/assets/images/attachments/34995/color change garnet.jpg" length="59656"/>
</item>
<item>
<title>The Purkinje Effect</title>
<description><![CDATA[The Tavernier diamond, also known as the Blue Diamond of the Crown or French Blue, is a Type IIb diamond with high levels of boron impurities. The absorption spectrum of boron causes these diamonds to absorb red, orange and yellow light making Type IIb diamonds appear bluish or greyish colors.
Color change in the Tavernier diamond could be actually the Purkinje effect, where in bright light the human eye is more sensitive to red and  in dim light the eye is more sensitive to blue-violet light, which causes the color of bluish gemstones to slightly enhance in dim lighting.]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-323-00003</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-323-00003</guid>
<author>Michael Vanevski</author>
<pubDate>Sat,  4 Apr 2009 16:21:00 +0200</pubDate>
</item>
<item>
<title>Alexandrite Garnet</title>
<description><![CDATA[There is a reason why Richard Wise called color changing garnet - Alexandrite Garnet. But I think it refers to the blue color change garnet from Madagascar.
Color change garnets are one of the rarest and most fascinating gemstones. The color change can be intense and even more dramatic than the color change of top quality alexandrite.]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-341-00001</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-341-00001</guid>
<author>Michael Vanevski</author>
<pubDate>Sat,  4 Apr 2009 15:26:00 +0200</pubDate>
</item>
<item>
<title>Are there any other gemstones which change color?</title>
<description><![CDATA[I heard that Bekily garnets look like almost natural alexandrite and when set in jewelry can be easily confused. How do alexandrite and color change garnet differ in appearance? ]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-341</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-341</guid>
<author>liska397</author>
<pubDate>Sat,  4 Apr 2009 15:14:00 +0200</pubDate>
</item>
<item>
<title>The Alexandrite Effect</title>
<description><![CDATA[Does the famous Tavernier diamond with it substantial color change between incandescent light and daylight show the alexandrite effect?]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-323-00002</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-323-00002</guid>
<author>netcobox@gmail.com</author>
<pubDate>Thu,  2 Apr 2009 17:32:30 +0200</pubDate>
</item>
<item>
<title>What is the june gemstone?</title>
<description><![CDATA[Gemstones associated with each month have changed frequently and one reason is that identification of gemstones has been often based on color instead of properties and classification.
In addition, birthstones have varied from country to country and as people became more interested in wearing birthstones, a lot of less expensive stones have been substituted for some of the rare and expensive gems. Strictly speaking - pearls are organic gems, not stones, but since most of the pearls on today's market are cultured pearls, it is an affordable substitute for an alexandrite.
]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-337</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-337</guid>
<author>Dominica Lachance</author>
<pubDate>Thu,  2 Apr 2009 16:18:00 +0200</pubDate>
</item>
<item>
<title>Alexandrite - Malacacheta</title>
<description><![CDATA[I think this alexandrite deposit belongs to Antares Mining and Exploration Corporation.  Alexandrite colors vary from green to blue, commercially known as "blue peacock". The richest deposits are found along two rivers: the Stream of Fire and Ribeirao Soturno. ]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-335-00001</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-335-00001</guid>
<author>Paulo Cruz</author>
<pubDate>Wed,  1 Apr 2009 12:40:00 +0200</pubDate>
</item>
<item>
<title>Alexandrite World Occurrences</title>
<description><![CDATA[Anyone heard of alexandrite deposit located in the gemological district of Malacacheta, about 30 km far from Malacacheta city, state of Minas Gerais, Brazil?]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-335</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-335</guid>
<author>netcobox@gmail.com</author>
<pubDate>Wed,  1 Apr 2009 10:32:34 +0200</pubDate>
</item>
<item>
<title>Teid Mining  - Novello mine new owners</title>
<description><![CDATA[Teid Mining recently acquired famous Novello mine which produces natural alexandrite. They are looking for trade partners who are interested in selling alexandrite specimens on an international market.
Teid Mining
#2, Hull Road,
Heavy Industrial site
Gweru, Midlands
Zimbabwe
Tel: 263-91-741891]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-163-00003</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-163-00003</guid>
<author>Michael Vanevski</author>
<pubDate>Wed,  1 Apr 2009 09:00:00 +0200</pubDate>
</item>
<item>
<title>Re: Zandrite</title>
<description><![CDATA[
Zandrite is another trade and  trademarked name for color changing synthetic glass laced with Neodymium.
Recent marketers and TV promoters of synthetic gemstones have started using the term "lab created", "created", "cultured" or "man made" to identify synthetics. Since synthetic corundum has been around for more than 100 years, even my grandmother's alexandrite jewelry might not be genuine.]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-324-00002</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-324-00002</guid>
<author>Lorraine Blank</author>
<pubDate>Sat, 28 Mar 2009 13:20:00 +0100</pubDate>
</item>
<item>
<title>Synthetic alexandrite identification</title>
<description><![CDATA[Synthetic alexandrite generally will possess most of the properties of the natural alexandrite and most gemological tests will not help identification. The best method is to check for internal inclusions, ultraviolet reactions and apply common sense: is it too good to be true? ]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-325</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-325</guid>
<author>Marisa Spano</author>
<pubDate>Sat, 28 Mar 2009 07:53:00 +0100</pubDate>
</item>
<item>
<title>Zandrite</title>
<description><![CDATA[Zandrite is another trade and  trademarked name for color changing synthetic glass laced with Neodymium. It was named Zandrite because it sounds like Alexandrite and exhibits color changing characteristics simmilar to Alexandrite. I think this name belongs to Jewelry Television now.
]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-324-00001</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-324-00001</guid>
<author>Marisa Spano</author>
<pubDate>Sat, 28 Mar 2009 07:22:00 +0100</pubDate>
</item>
<item>
<title>Alexandrite Effect vs Usambara Effect</title>
<description><![CDATA[Usambara effect suggested by the Mineralogical Museum of Oslo  after Usambara Mountains of Tanzania, where Norwegian geologist Asbjorn Halvorsen collected chromiferous green tourmaline which displayed strong color change effect. The Usambara effect describes a color change dependant not on the type of illumination as with the Alexandrite effect, but rather on a change of path length of light through the gemstone in a single orientation.
With Alexandrite Effect, if the illumination is stronger in the red wavelengths as with candle light, red becomes the perceived color. In daylight which is stronger in the green wavelengths to which the eye is much more sensitive, the perceived color is green. With Usambara Effect, once the thickness of the gemstone reaches a critical point, dependant on concentration of the elements chromium and vanadium, the perceived color of the transmitted light  shifts from green to red. Which explains how Usambara effect was discovered in the first place: gem quality tourmalines from the Umba Valley  (Tanzania), each green  by transmitted light, when placed on top of one another, showed yellow color, succeeded by orange and red as the thickness of the gemstone pile increased.
]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-323-00001</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-323-00001</guid>
<author>Marisa Spano</author>
<pubDate>Sat, 28 Mar 2009 07:04:00 +0100</pubDate>
</item>
<item>
<title>Alexandrite Synthetics and Imitations</title>
<description><![CDATA[Color change synthetic glass imitation of the Alexandrite emerged onto the TV shopping channels recently. Alexandrium - pink to violet color change glass and Zandrite, that exhibits color change due presence of Neodymium  from pink in natural light  to green under florescent light.]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-324</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-324</guid>
<author>netcobox@gmail.com</author>
<pubDate>Sat, 28 Mar 2009 06:34:42 +0100</pubDate>
</item>
<item>
<title>The Alexandrite Effect</title>
<description><![CDATA[Does the color-change behaviour known as the Usambara Effect have any relations to the Alexandrite Effect?]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-323</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-323</guid>
<author>netcobox@gmail.com</author>
<pubDate>Fri, 27 Mar 2009 13:22:00 +0100</pubDate>
</item>
<item>
<title>Alexandrite Myths, Legends and Lore</title>
<description><![CDATA[There is an an interesting anecdote of a major European ball, when the empress of Russia wore her wonderful alexandrite jewelry, only to be shocked when a German princess was wearing the same gem because unscrupulous keeper of the Russian vault of jewels had sold some pieces to a German prince?]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-321</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-321</guid>
<author>Alan Javore</author>
<pubDate>Sun, 22 Mar 2009 03:17:05 +0100</pubDate>
</item>
<item>
<title>Re: Definition of Alexandrine</title>
<description><![CDATA[Alexandrine is also a name for the Afro-Asian Alexandrine's parrot (Psittacula eupatria). Originating from India, pressure to cater to the demands of the pet trade have caused a drastic decline in this species. It is illegal to trade in Alexandrine Parakeets in India and yet these birds are sold in broad daylight in urban bird markets, suggesting that the Indian government is allocating insufficient resources towards the protection of this beautiful species.
By the way the picture below is named "Dewey" who is very playful and can be very talkative, and a superb imitator.
]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-304-00001</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-304-00001</guid>
<author>liska397</author>
<pubDate>Fri, 20 Mar 2009 01:17:39 +0100</pubDate>
<enclosure type="image/jpeg" url="http://www.alexandrite.net/assets/images/attachments/34763/alexandrineparakeet.jpg" length="69352"/>
</item>
<item>
<title>Definition of Alexandrine</title>
<description><![CDATA[An alexandrine is also a line of poetic meter and very common in the German literature of the Baroque period and in French poetry of the early modern periods. There is some doubt as to the origin of the name; but most probably it is derived from a collection of Alexandrine romances.]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-304</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-304</guid>
<author>Paulo Cruz</author>
<pubDate>Fri, 20 Mar 2009 00:47:00 +0100</pubDate>
</item>
<item>
<title>Is there a difference between Russian and Brazilian Alexandrite gemstones?</title>
<description><![CDATA[Alexandrite is alexandrite no matter where it comes from. In spite of there being many alexandrite gemstones obtainable from locations all round the world now which range in colour change from hardly noticeable to very strong, oily green to reddish brown, purple to pink...]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-303</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-303</guid>
<author>Alan Javore</author>
<pubDate>Thu, 19 Mar 2009 23:26:42 +0100</pubDate>
</item>
<item>
<title>What is the difference between chrysoberyl and alexandrite?</title>
<description><![CDATA[In practice, chrysoberyl and alexandrite may be difficult to differentiate. Since stones with a weak change may be called alexandrite and gemstones with a faint change are called chrysoberyl, what is the difference? Where is the borderline?]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-302</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-302</guid>
<author>Alan Javore</author>
<pubDate>Thu, 19 Mar 2009 23:15:42 +0100</pubDate>
</item>
<item>
<title>Re: Alexandrite ring + other a. non mounted</title>
<description><![CDATA[ How can I find out who and where this stones could be appraised with accuracy. Can some one guide me? I do have photographs. Thank you! Grazie! Merci!
In USA, you can contact any of the following organisations:
1. The National Association of Jewelry Appraisers
http://www.najaappraisers.com/
2. The International Society of Appraisers
http://www.isa-appraisers.org/
3. The American Society of Appraisers
http://www.appraisers.org/]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-175-00002</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-175-00002</guid>
<author>Marisa Spano</author>
<pubDate>Fri,  9 Nov 2007 21:22:00 +0100</pubDate>
</item>
<item>
<title>Classic alexandrite story</title>
<description><![CDATA[Many of alexandrite were sold to tourists in Egypt, Alexandria (alexandrite is not mined in Alexandria), after the Second World War. We receive many inquiries about these old and now inherited alexandrites bought by an aunt or a grandmother in Egypt or someplace else and almost all of them are synthetic alexandrite like corundum.  And 80 years ago  there were no natural alexandrites coming from Russia ( USSR at the time), although some un mounted stones or jewels were still available from the Russian emigre and they were not cheap.
Anyway, before appraising your alexandrites, you need to make sure if they are natural gemstones. I recommend you to contact your local gemological lab and ask them for the identification report. It will cost 100-200 USD, but it will confirm if you have natural alexandrites and it will also state weight, clarity and colour of the stones. Then you can post this information, for example on this forum, and will get pretty accurate estimate what they worth.
Finally, I will not recommend posting photos, because it's almost impossible to estimate value of the gemstone only from the picture. Besides, I doubt that you can make professional picture, since alexandrite is the hardest stone to photograph.
]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-175-00001</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-175-00001</guid>
<author>John Sinth</author>
<pubDate>Thu, 18 Oct 2007 06:48:03 +0200</pubDate>
</item>
<item>
<title>My grandmothers alexandrite favorite ring</title>
<description><![CDATA[I have been proudly wearing my grandmothers favorite ring for over 20 years without going beyond its immense sentimental value (I also have her same 1st name). I know that my grandfather had bought the stones for her (I also have an unmounted one) over 80 years ago. I always heard that the stones came from Russia... but might have been bought in Egypt...
Last year, I misplaced the ring and felt torn for days. It reappeared. Since then I have been keeping it very close, and, recently, I started reading and researching the stone and its history. I went to various jewellers both in Italy and Canada but no one could appraise it. I was repeatedly told: "It looks very precious but we do not deal this type of gems". They are beautiful and quite large stones (I measured the mounted one at 1.4cm in diameter and 0.7cm in height and the unmounted one at 1.1cm x 0.7cm) and they change color so delicately...
In available light they look a little like light amethysts with a touch of aquamarine greenish blue and under artificial light they warm up to a fiery violet-red. The smaller, unmounted one, becomes more reddish that the large one, it sometimes almost looks like a purpulish ruby. How can I find out who and where this stones could be appraised with accuracy. Can some one guide me? I do have photographs.
Thank you! Grazie! Merci!]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-175</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-175</guid>
<author>imp</author>
<pubDate>Wed, 17 Oct 2007 23:29:00 +0200</pubDate>
</item>
<item>
<title>Acrylite sheet is a lightweight, rigid and weather-resistant thermoplastic.</title>
<description><![CDATA[An Acrylite sheet's surface shifts through the color spectrum as it is viewed from different angles and uses ambient light to provide a mirrorized effect. Developed for interior applications, the sheet has a treated surface incorporating proprietary technology to give the sheet its radiant effect. Acrylite beads can be used in jewelry.
]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-159-00001</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-159-00001</guid>
<author>Dominica Lachance</author>
<pubDate>Sat,  2 Jun 2007 16:31:00 +0200</pubDate>
</item>
<item>
<title> Novello Mine and Girdlestone Farm</title>
<description><![CDATA[Hi,
Novello Mine and Girdlestone Farm are two different places. Novello Mine located in Masvingo province and Girdlestone Farm in Mashonaland West province.
Richard]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-163-00002</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-163-00002</guid>
<author>Anonymous</author>
<pubDate>Mon, 30 Apr 2007 11:40:00 +0200</pubDate>
</item>
<item>
<title>Zimbabwe</title>
<description><![CDATA[I have just visited the Novello Mine near Masvingo in Zimbabwe where I conducted Geophysical studies over the area. During my web research I found that most sites refere to the Girdlestone Farm. My Question is, is the Novello Mine and the Girdlestone Farm the same place?
Raymond Vonk]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-163</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-163</guid>
<author>Anonymous</author>
<pubDate>Mon, 30 Apr 2007 11:24:42 +0200</pubDate>
</item>
<item>
<title>russian alexandrites</title>
<description><![CDATA[I would like to add to discussion that anyone would have about alexandrites, especially the russian ones. If you have or suspect you have  an alexandrite, be careful who you take it to. A reputable gemologist who is willing to put it through the battery of tests not just look at it is who you want to seek out. If the gemologist picks it up looks at it and then hands it back and says nope its synthetic, get your self out of there as fast as you can. They cannot and i repeat cannot be checked that way. Also about the synthetic ones. Sure they made sythentic stones in the late 1890's but they were microscopic in size. It wasnt until around 1902 that they were made about the size of the head of a pin. And it was a ruby to boot. Synthetic alexandrites were made in around the 1960's bya company called CHATTAM.  I would like to find serious people who are interested in dicussing alexandrites. My favorite is the siberian one. as it is usually eye clean and very nice to look at. contact me at lindasilljer@hotmail.com
linda silljer]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-162-00008</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-162-00008</guid>
<author>Anonymous</author>
<pubDate>Tue, 24 Apr 2007 04:48:41 +0200</pubDate>
</item>
<item>
<title> Round alexandrite prices</title>
<description><![CDATA[Round alexandrites especially in larger sizes are extremely rare. A real nice 1.60ct. stone could retail for $20,000. There isn't much production of alexandrite anywhere right now so prices have been rising. Try www.multicolour.com for better alexandrite prices.]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-162-00007</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-162-00007</guid>
<author>David Weinberg</author>
<pubDate>Sat, 31 Mar 2007 23:32:04 +0200</pubDate>
</item>
<item>
<title> Buy loose alexandrite and ask  jeweler to set it for you.</title>
<description><![CDATA[I've noticed some very nice round-cut Alexandrites over 1 carat on this site.  I found a 1.6 round-cut Alexandrite from a reputable jeweler.  The stone is natural, eye-clean, with good color change blue/green to red/purple (similar to the round stones posted on this site).
Jeweller's standard retail markup is about 4.5, so you probably can get this gemstone for about 4.000-5.000 USD. And if you are serious about buying an alexandrite jewelry, I will recommend to buy loose alexandrite gemstone with certificate and then ask a jeweller to set it for you or better made custom design unique ring.
A.V.K]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-162-00004</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-162-00004</guid>
<author>Andrei Vesselovski</author>
<pubDate>Sun, 18 Feb 2007 19:23:00 +0100</pubDate>
</item>
<item>
<title> Alexandrite retail markup</title>
<description><![CDATA[I've noticed some very nice round-cut Alexandrites over 1 carat on this site.  I found a 1.6 round-cut Alexandrite from a reputable jeweler.  The stone is natural, eye-clean, with good color change blue/green to red/purple (similar to the round stones posted on this site).  The retail price is approximately $20,000!!  I was very surprised, to say the least.  Can this be right??  Can anyone shed some light, and what is the markup on these things??
Clean and round alexandrites with a strong color change are extremely rare. I could imagine a retail price of $20,000 for a high quality stone because that shape is so hard to find in alexandrite. If you are working with a high end jeweler in a retail location, that price would also reflect the high overheads associated with that kind of a business. If you can live with an oval, you will find a much better selection and much more attractive pricing. Try Multicolour.com for a good selection of alexandrites at more affordable prices, at http://www.multicolour.com/gallery/?/gallery/alexandrite/
Simon  Dawew CII
]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-162-00002</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-162-00002</guid>
<author>Anonymous</author>
<pubDate>Sun, 18 Feb 2007 19:10:13 +0100</pubDate>
</item>
<item>
<title> Approximate value of Alexandrite?</title>
<description><![CDATA[We have an old ring that is approximately 3-4 carts, round cut set in 18k gold. The jeweler we took it to told us it was an alexandrite. The color changes from dark purple to deep green. I am not sure if it is a genuine natural stone or lab created - my guess would be lab or simulated since it is so large. Can you give me an idea on the approximate value of this stone/ring ?]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-162-00005</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-162-00005</guid>
<author>David Sharkov</author>
<pubDate>Sun, 18 Feb 2007 17:08:00 +0100</pubDate>
</item>
<item>
<title> Who sets the standard for price and color-change for Alexandrite?</title>
<description><![CDATA[Color-change is determined by counting the number of facets that change color in the stone when looking down through the table of the gem. The GIA labels these changes by using the terminology of Weak (considered color-change crysoberyl), Medium, Medium-Strong, Strong, Very-Strong. Other labs and several international governmental agencies use a numerical grading which is determined by the percentage of facets changing color. These conditions are performed scientifically but the reading of them is subjective. Therefore, color-change strength may be rated differently by different gemologists
Rita]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-162-00006</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-162-00006</guid>
<author>Anonymous</author>
<pubDate>Sun, 18 Feb 2007 17:06:23 +0100</pubDate>
</item>
<item>
<title>Alexandrite buyer's guide. Chapter 9, Alexandrite gemstone buyer and collectors guide.</title>
<description><![CDATA[I've noticed some very nice round-cut Alexandrites over 1 carat on this site.  I found a 1.6 round-cut Alexandrite from a reputable jeweler.  The stone is natural, eye-clean, with good color change blue/green to red/purple (similar to the round stones posted on this site).  The retail price is approximately $20,000!!  I was very surprised, to say the least.  Can this be right??  Can anyone shed some light, and what is the markup on these things??
michael beal]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-162</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-162</guid>
<author>Anonymous</author>
<pubDate>Sun, 18 Feb 2007 17:04:57 +0100</pubDate>
</item>
<item>
<title> Understanding alexandrite prices, value and appraisal</title>
<description><![CDATA[Alexandrite is a rare precious stone which is used in the manufacture of alexandrite jewelry like alexandrite rings, necklaces, pendants or bracelets. Alexandrite appraisal is not performed by the jewel manufacturer, but by qualified personnel and it looks at several aspects which are related to the stone: the way it reflects and bends light, the value, and the final use of the gemstone. To determine a crucial aspect of the gemstone (the thing that sets it apart from any other precious stone) is also necessary. Alexandrite appraisal must determine if the stone meets some standards. It is an evaluation upon these arguments:
1. The first step in alexandrite appraisal is the nature of the gemstone. It can be natural (mined from the earth) or produced synthetically in the laboratory. Of course, the most expensive one is the natural alexandrite.
2. Alexandrite is the only gem that has a color changing standard. The stone must change from green in daylight to rich ruby red or violet/purple in incandescent light or candlelight. Alexandrite appraisal must make sure that the alexandrite fits this description because the color of the stone is of uppermost importance. Alexandrite gemstones must meet a standard that implies they change their color 100%. The purer the stone is the more its value increases.
4. Alexandrite appraisal also takes into account clarity, a property of the gemstone that is associated with the degree of absence of inclusions. The norm for alexandrite is for it to have minor inclusions.
5. Another aspect that concerns alexandrite appraisal is the cut. Alexandrite is found in many shapes, but oval is the most commonly met form. A round cut raises the stone’s value considerably.
6. The final and most important phase of alexandrite appraisal is carat evaluation. One carat equals 200 milligrams. Carat combined with color, cut and clarity will determine the final price of the gemstone after the alexandrite appraisal.
One must understand that the gems themselves aren’t sold to the average buyer even if the alexandrite appraisal is valid. They must be used by the manufacturers to make alexandrite jewelry. When buying jewelry, the average customer has to understand that an alexandrite appraisal is highly recommended.
Keep in mind that working with jewelry does not make one a professional in alexandrite appraisal. Be careful and look out for scams or other deceits played by these so called alexandrite appraisal experts. Scams usually work by using you as the main player in their game. The so called alexandrite appraisal expert tries to give you a low value for your gemstone or jewelry and does a superficial alexandrite appraisal while his accomplices try to buy them from you. They usually make it look like they’re doing you a favor. Be aware of such scams and always look for the certificate of recognition that proves a person qualified.
Most jewelry buyers consider they know pretty much about the products they are interested in, but without a professional alexandrite appraisal they don’t have any safety or certainty.
Nooten-Boom@]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-162-00001</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-162-00001</guid>
<author>Anonymous</author>
<pubDate>Sun, 18 Feb 2007 17:03:56 +0100</pubDate>
</item>
<item>
<title> colors and hardness of alexandrite</title>
<description><![CDATA[Alexandrites are normally green, yellow green, brownish green, or bluish green in daylight and red, pinkish red, brownish red, purple, or purple red under incandescent light. The hardness of alexandrite irrespective of color is always 8.5 on the Moh's scale.]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-161-00014</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-161-00014</guid>
<author>David Weinberg</author>
<pubDate>Sun, 24 Dec 2006 22:19:21 +0100</pubDate>
</item>
<item>
<title> what is my alexandrite worth</title>
<description><![CDATA[Alexandrites that large would very rarely be cut as rounds so I suspect that your stone is a synthetic or a lab grown stone. If you want to know for sure, send the stone to a qualified and experienced gemologist. A fine quality natural stone that size would wholesale for between $3000 to $12,000/ct. Lab grown or synthetic stones don’t have any resale value except for the value of the gold in the ring.]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-161-00013</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-161-00013</guid>
<author>David Weinberg</author>
<pubDate>Sun, 24 Dec 2006 22:10:17 +0100</pubDate>
</item>
<item>
<title> where to sell alexandrite in India</title>
<description><![CDATA[The main colored stone market in India is in Jaipur and that might be a good place to wholesale your stones. You could also try to find a private buyer.]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-161-00012</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-161-00012</guid>
<author>David Weinberg</author>
<pubDate>Sun, 24 Dec 2006 21:55:14 +0100</pubDate>
</item>
<item>
<title> is there any blue color changing into ruby red in natural alexandrite gem stone ?</title>
<description><![CDATA[how many colors have in  alexandrite zem stone? what about the hardness of that stones?how to find out alexandrite stone?
tirupathi rao]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-161-00011</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-161-00011</guid>
<author>Anonymous</author>
<pubDate>Thu, 21 Dec 2006 16:24:06 +0100</pubDate>
</item>
<item>
<title> how many colors have in  alexandrite zem stone?</title>
<description><![CDATA[how many colors have in  alexandrite zem stone? what about the hardness of that stones?how to find out alexandrite stone?
tirupathi rao]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-161-00010</link>
<guid isPermaLink="true">http://www.alexandrite.net/viewpage.html?id=FRM-161-00010</guid>
<author>Anonymous</author>
<pubDate>Thu, 21 Dec 2006 16:21:19 +0100</pubDate>
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<title> Approximate value of Alexandrite?</title>
<description><![CDATA[We have an old ring that is approximately 3-4 carets, round cut set in 18c gold. The jeweler we took it to told us it was an alexandrite. The color changes from dark purple to deep green. I am not sure if it is a genuine natural stone or lab created - my guess would be lab or simulated since it is so large. Can you give me an idea on the approximate value of this stone/ring ?
Debra Legato]]></description>
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<author>Anonymous</author>
<pubDate>Mon, 11 Dec 2006 13:56:32 +0100</pubDate>
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<title> Alexandrite  of Debhog India</title>
<description><![CDATA[I have Alexandrite Peices which are rough (raw) and they are 2 to 7 carat in size. I would be glad to know if I can get information regarding it and where do I sell it in India and Whom to contact. Alexandrite are color changing.
Surendra.
]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-161-00008</link>
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<author>Anonymous</author>
<pubDate>Sat, 18 Nov 2006 20:36:36 +0100</pubDate>
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<title> fluorescence in alexandrite</title>
<description><![CDATA[How did you manage to get an RI on a mounted stone? I would take the stone out of the setting and recheck the RI and study the inclusions. According the R. Webster, natural alexandrite shows a weak red glow under both long and short UV. And yes, it should turn red in a Chelsea filter because of the chromium content. However, I don’t think fluorescence or a chrome filter will give you a conclusive identification because synthetic alexandrite probably reacts the similarly. Anyway, there are several manufacturers of synthetic alexandrite and their UV reactions will vary.
As far as I know UV light reactions are not at all useful to differentiate between natural and synthetic alexandrite. You really need to look at the inclusions or send the stone to a competent lab.]]></description>
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<author>David Weinberg</author>
<pubDate>Wed, 25 Oct 2006 14:54:02 +0200</pubDate>
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<title> heat treatment of alexandrite</title>
<description><![CDATA[So far, there is no way to improve the colors of alexandrite by heating. We have already tried and were unable to change the colors at all.]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-161-00006</link>
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<author>David Weinberg</author>
<pubDate>Wed, 25 Oct 2006 14:26:39 +0200</pubDate>
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<title> Alexandrite query</title>
<description><![CDATA[Hi there
got a 5.01cts stone mounted on a ring. RI gave away as Alexandrite.
deep green in day light to strong reddish purple in artifical light.
Chelsea filter gave a strong red reaction . UV - LW moderate Red and
SW - chalky moderate yellowish Orange effect...
I am confused with the SW reaction !!!!!!!!  Is this normal ??
Will a Natural Alexandrite show this reaction in SW??
Inclusions are hard to see but saw something like clouds lined up not
sure what it means... cant see any other growth structure coz. of the
mount.
Does the SW reaction seem strange for a natural alexandrite or its
high probability of a synthetic??
Any help would be appreciated
Rahila
]]></description>
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<author>Anonymous</author>
<pubDate>Sun, 22 Oct 2006 00:45:32 +0200</pubDate>
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<title> Are there any ways to improve alexandrite colors by  treatment?</title>
<description><![CDATA[Are there any ways to improve alexandrite colors by any special treatment like heating?
Karl]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-161-00002</link>
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<author>Anonymous</author>
<pubDate>Thu, 12 Oct 2006 22:55:53 +0200</pubDate>
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<title> What is the difference between cat´s eye and alexandrite?</title>
<description><![CDATA[What is the difference between cat´s eye and alexandrite?
K.L]]></description>
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<author>Anonymous</author>
<pubDate>Thu, 12 Oct 2006 22:54:36 +0200</pubDate>
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<title> FAQ's</title>
<description><![CDATA[The FAQ page will be posted shortly.]]></description>
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<author>David Weinberg</author>
<pubDate>Fri, 15 Sep 2006 10:42:27 +0200</pubDate>
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<title> What is alexandrite?</title>
<description><![CDATA[I think FAQ for your guide will be very useful. To let you started: What is alexandrite?
Jane]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-161-00003</link>
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<author>Anonymous</author>
<pubDate>Thu, 14 Sep 2006 01:19:11 +0200</pubDate>
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<title>Alexandite Questions and Answers</title>
<description><![CDATA[Alexandrite Frequently Asked Questions]]></description>
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<author>David Weinberg</author>
<pubDate>Thu, 14 Sep 2006 01:19:10 +0200</pubDate>
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<title> Some alexandrite lasers manafactures</title>
<description><![CDATA[Hi Chris,
Good idea. And we do have plans of making an alexandrite related  directory, including synthetic alexandrite manufactures, rods  and laser equipment producers. Anyway,  here is some companies you can contact:
Candela, Inc. http://www.candelalaser.com/
Manufacture of Q-switched 755nm alexandrite laser system. (Candela GmbH in Germany)
Cynosure, Inc. http://www.cynosurelaser.com/
Developer and producer of Apogee 5500 long pulse alexandrite laser.
Light Age, Inc.  http://www.lightage.com/
This company is preeminent developer of alexandrite laser technology, in USA
Lumenis Ltd. http://www.lumenis.com/
Developer of medical and aesthetic lasers and light-based technology.
]]></description>
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<author>Andrei Vesselovski</author>
<pubDate>Sat,  2 Sep 2006 03:03:00 +0200</pubDate>
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<title>The Alexandrite Laser</title>
<description><![CDATA[Dear all,
"Standard" alexandrite lasers seem to be a very inefficient, not very reliable and quite expensive, and it will be very helpful if you will  add small directory and maybe overview of the existing  alexandrite laser models (and perhaps  producers) in your guide. I looked for it quite a long time, but I'm not at all into lasers, so I  might have looked at the wrong places. Anybody can help in recommending  a good company?
Thanks, Chris
Chris D]]></description>
<link>http://www.alexandrite.net/viewpage.html?id=FRM-160</link>
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<author>Anonymous</author>
<pubDate>Sat,  2 Sep 2006 02:40:46 +0200</pubDate>
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<title>Methods of Producing Synthetic Alexandrite</title>
<description><![CDATA[Check this story. What's this all about?
Sculpture gets new hue
By MARY ANN ALBRIGHT
Gazette-Times reporter
"The sculpture, called Electric Field, contains a series of X’s and triangles, representative of athletes in a generic football play. These symbols are illuminated by energy-efficient LED lights.
Oppenheim worked with Foress Signs of Albany to create acrylic covers for the lights made of a new material called chameleon plastic,? which was developed by Acrylite.
Farra Snook, Foress owner, said Acrylite won’t reveal exactly how the product works. He suspects, however, that the manufacturer found a way to synthetically create Alexandrite, a gemstone with color-changing properties.
Snook suspects Acrylite then grinds this substance down and uses it to treat plastics. "Electric Field" works like a prism, refracting light and picking up colors around the sculpture, Snook said. Because there are lots of trees near Parker Plaza, the X’s and triangles often appeared more green and yellow than other colors....
David Silverberg]]></description>
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<author>Anonymous</author>
<pubDate>Sat,  2 Sep 2006 02:30:00 +0200</pubDate>
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