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Tanzanite is a zoisite variety and is named after Tanzania. Although the inhabitants of Tanzania knew the stones for a long time, tanzanite was discovered only in 1967 for precious stone science by an Indian prospector Manuel de Souza. However, this thought initially found a deposition of sapphire. Tanzanite was then described by the German geological association as a variety of zoisites. The stone was especially famous as a jewel of film star Elizabeth Taylor. Today tanzanite belongs to the most popular gems. Tanzanites are found in the area of the Merelani Hills (also known as Meralani, Merarani or Mererani Hills), near Arusha and Moshi in Tanzania. They form prismatic crystals with marked vertical slots and occur in pegmatic-hydrothermal veins. The Smithsonian Institute in Washington's collection contains beautiful rough and tanned tanzanites. The literature describes a carved stone of 122.7 carats and a tanzanite cat eye of more than 200 carats. Tanzanites are used in all ornamental forms. Sometimes the color can be improved by heating to 400-500 degrees centigrade.
TanzanitE
Dimensions | 15-25mm |
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