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Alexandrite

Tsarstone collectors guide

Authors and Contributors

"What we need to do is learn to work in the system, by which I mean that everybody, every team, every platform, every division, every component is there not for individual competitive profit or recognition, but for contribution to the system as a whole on a win-win basis."W. Edwards Deming

David Weinberg

David Weinberg
David Weinberg

David Weinberg was born in the United States in 1954. He studied chemistry and geology at Boston University. After graduation in 1978, he worked as a well site geologist on petroleum exploration wells in New Guinea, Indonesia, Malaysia, Thailand, Taiwan and Japan. An interest in gems and minerals led to further studies at the GIA (Gemological Insitute of America) in New York, where he completed the graduate gemologist program in 1981.


Thailand has been his home for the last 25 years and he has been involved in many aspects of the trading and cutting of both natural and synthetic gemstones. He is a major share holder and partner at Multicolour Gems Co. Ltd. and frequently travels to buy gemstones throughout Asia and Africa. Mr. Weinberg developed the first Multicolour.com website which has been successfully selling gemstones online for over 10 years. He is married, his wife for over 20 years is Thai, and they have two daughters who are currently studying abroad.

Kim Farnell

Kim Farnell
Kim Farnell

Kim Farnell gained a Masters degree in Cultural Astronomy and Astrology in 2005 and her Diploma from the Faculty of Astrological Studies in 1990. She was previously the Vice Chair of the Astrological Association of Great Britain and has been editor of its Newsletter, Transit, both as a print magazine and online. Kim has written extensively on astrology for magazines in the UK and overseas.


As well as her astrological work, Kim also researches the history of theosophy and occult movements in the nineteenth century. She has been published and spoken widely on these subjects. She is the author of The Astral Tramp: A Biography of Sepharial (Ascella, 1998), The New Illustrated Guide to Astrology, (Starfire 2003), Reading the Runes (Zambezi 2003), Ching Decision Maker (Zambezi, 2003) and Mystical Vampire: A Biography of Mabel Collins, (Mandrake, 2005). She has also had books published in Japanese and Serbian.


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