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<![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 & 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

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Topic page 1 of 1
Methods of Producing Synthetic Alexandrite
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The Alexandrite Laser
Alexandite Questions and Answers
Alexandrite Frequently Asked Questions
Alexandrite buyer's guide. Chapter 9, Alexandrite gemstone buyer and collectors guide.
My grandmothers alexandrite favorite ring
My Grandmother left me her favorite
What is the difference between chrysoberyl and alexandrite?
Chrysoberyl is the species name and Alexandrite is the variety name. Alexandrite is that variety of chrysoberyl that changes color as a function of the light source; green in daylight and red under incandescent light.
Is there a difference between Russian and Brazilian Alexandrite gemstones?
The mining of alexandrite in Russia lasted less than 100 years from the time it was discovered in 1833 to the early 1900’s. It was George Kunz, the gemologist/gemstone buyer for Tiffany & Co that probably did the most to popularize this unique gemst
Definition of Alexandrine
A misleading term for synthetic alexandrite-like sapphire, which changes color. Also called synthetic alexandrite.
Alexandrite Myths, Legends and Lore
Collection of myths, legends and lore surrounding the alexandrite gemstone
The Alexandrite Effect
Discussion about the alexandrite effect as a non-color-constancy phenomenon from the color theory perspective
Alexandrite Synthetics and Imitations
Guide to synthetic alexandrite production, alexandrite imitations and the differences between natural and synthetic alexandrite
Synthetic alexandrite identification
Some modern synthetic gemstones look more natural and are more difficult to identify, but an experienced jeweler or gemologist can usually classify them
Alexandrite World Occurrences
Study of all the known historical and confirmed alexandrite deposits and mining operations
What is the june gemstone?
What is the june gemstone - alexandrite, pearl or moonstone?
Are there any other gemstones which change color?
How do alexandrite and color change garnet differ in appearance?
Chrysoberyl Species and Variety
Information about the chrysoberyl mineral, it's properties, varieties and history
Definition of Alexandrite cat's eye
A chatoyant variety of alexandrite, with parallel inclusions. Cut en cabochon, it has a light cat's-eye effects.
Chronological History of Alexandrite
Chronological history timeline, depicting the history of the alexandrite gemstone and it’s roots
Book Announcement: Russian Alexandrites by Karl Schmetzer
Russian Alexandrites 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.
New Book: Russian Alexandrites by Dr. Karl Schmetzer
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...
need advice as quickly as possible
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...
re: advice
I have the destroyed ring. the stone measure 14mm
Deciding Between Natural and Synthetic Alexandrite
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...
How much will a typical one carat alexandrite gemstone cost?
The retail replacement cost for a 1ct. alexandrite could be anywhere between $500 to $12,000 per carat. The intensity of the color change and the attractiveness of the colors are the most important factors in determining the value of an alexandrite. With
Is alexandrite the most expensive gemstone in the world?
Along with diamonds, rubies, and emeralds, top quality alexandrites are among the most expensive gemstones in the world. In larger sizes over 4.00 or 5.00cts., Burmese rubies are more rare and expensive than alexandrites but in sizes below 1.00cts., alexa


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