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Tanzanite
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A variety of Zoisite
A gem variety of Zoisite with a blue to blue-violet colour.
Note that nearly all tanzanites on the market have been heat-treated to produce this colour. Note also that tanzanion is used as a synthetic simulant for tanzanite.
First reported from the Merelani Hills (Mererani), Umba Valley, Lelatema Mts, Arusha Region, Tanzania.
Visit gemdat.org for gemological information about Tanzanite. Currently in public beta-test.
A gem variety of Zoisite with a blue to blue-violet colour.
Note that nearly all tanzanites on the market have been heat-treated to produce this colour. Note also that tanzanion is used as a synthetic simulant for tanzanite.
First reported from the Merelani Hills (Mererani), Umba Valley, Lelatema Mts, Arusha Region, Tanzania.
Visit gemdat.org for gemological information about Tanzanite. Currently in public beta-test.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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Locality Updated: San Miguel Mine, Moctezuma, Mun. de Moctezuma, Sonora, MexicoFrom David Von Bargen, 24th May 2013 23:52:46