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Tsavorite or tsavolite is a variety of the garnet group species grossular, a calcium-aluminium garnet with the formula Ca 3 Al 2 Si 3 O 12. [2] Trace amounts of vanadium or chromium provide the green color.
The gemstone weighs 116.76 carats, has 177 facets, and is an intense green color. It was donated in the memory of Campbell R. Bridges, the gemologist who discovered tsavorite, who was murdered in 2009. It is the largest known tsavorite gemstone and the largest fine gemstone ever to be cut and polished in the United States.
Bridges, originally from Scotland, lived in Kenya with his family and regularly mined for rare gemstones with his son Bruce Bridges. [2] The discovery of the green variety of garnet known as tsavorite and the importation of tanzanite into the west solidified his reputation and led to a consultancy with Tiffany & Co. in 1973. [3
Tsavorite was first described in the 1960s in the Tsavo area of ... [60] [61] star garnet is the state gemstone of Idaho, [62] garnet is the state gemstone of New ...
Category: Garnet gemstones. 3 languages. ... Tsavorite; U. Uvarovite This page was last edited on 7 June 2016, at 12:52 (UTC). Text is available under the ...
Gemstones of the World revised 5th edition, 2013 by Walter Schumann ISBN 978-1454909538 Smithsonian Handbook: Gemstones by Cally Hall, 2nd ed. 2002 ISBN 978-0789489852 v
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