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Uvarovite (Afghanistan!)

Uvarovite is a calcium chromium silicate and a member fo teh garnet group. Its essential chromium content, in the form of trivalent Cr3+ imparts a green color to the mineral. Hess (1832) named the mineral after Count Sergei Semenovich Uvarov (1786-1855), Russian nobleman, and President of the Russian Academy of Sciences. While listed in mineralogy texts, and many online articles on garnets, this species is rather rare and typically found in limited quantities.

Two uvarovite dodecahedra, 1.3 cm and 0.6 cm across, are nestled in a depreesion of crystalline diopside. The larger crystal is about 60% complete, with some microchipping present, while the smaller crystal is pristine. The uvarovite crystals here were freed from white massive quartz, much like the better known (and quite similar appearing) examples from Finland. That process typically causes fine chattering of the crystal edges. This piece is exceptional for crystal size and it comes from an obscure locality. This is a competition quality thumbnail sure to generate interest! A label from Mineralogical Research Company accompanies this specimen.

Price: $450

Item code: MS1598

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