Uvarovite

Uvarovite

Uvarovite is named after Count Sergey Semeonovich Uvarov (1786-1855), Russian statesman and scholar, president of the Academy of Saint Petersburg (1818-1855)

Uvarovite has been found in the Saranovskii mine ("Rudnaya" underground chromite mine; Glavnoe Saranovskoe deposit), Saranovskaya Village (Sarany), Gornozavodskii District, Perm Krai, Russia

Data

Formula Ca3Cr2 (SiO4) 3
Color Green, Emerald green, Green-black
Gloss Glassy
Hardness 6½ - 7
Specific Weight 3.77 - 3.81
Crystal System Isometric
Transparency Transparent, Translucent
Location Canada, Finland, India, Poland, Russia, California

Uvarovite is the name given to the green calcium chrome garnet end member. The name has often been misused in the past to refer to other green and / or chromium-containing garnets, many so-called 'Uvarovites' are actually chromic Grossular, chromian Pyrope, green Andradite (the so-called Iranian 'uvarovite') or even the rare Knorringite (magnesium chrome garnet).

Some Uvarovites exhibit Al-Cr cation ordering, resulting in orthorhombic, monoclinic or triclinic symmetries (while still being highly pseudocubic).

If in stock, you will find my collection of raw Gemstones within this group below. Are you looking for cut Gemstones, then look at UVAVORIET 

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