Dragon Minerals - Update January 4, 2019

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25394: Zoisite (variety Tanzanite)
Merelani Hills, Simanjiro District, Manyara Region, Tanzania
Thumbnail - 1.1 x 0.6 x 0.5 cm (0.4 x 0.2 x 0.2 inches)
Weight - 0.71 grams (0.01 pounds)
Specimen status: Sold

A small but terminated, slightly water worn tanzanite crystal. The surface is slightly frosted but translucency is quite high. The specimen's pleochroism (blue/purple color change dependent upon viewing angle) is visible so I do not believe this specimen has been heated (as it typical for tanzanite, to intensify the blue color). In the photos the pleochroism appears as different shades of blue.

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