Uvarovite

Uvarovite
Pendant in uvarovite, a rare bright-green garnet. The long dimension is 2 cm (0.8 inch)
General
Category	Mineral
Formula (repeating unit)	Ca3Cr2Si3O12
Strunz classification	09.AD.25
Identification
Color	Green, emerald-green, green-black
Mohs scale hardness	6.5-7.5
Luster	Vitreous
Streak	White
Diaphaneity	Transparent, Translucent

Uvarovite is a chromium-bearing garnet group species with the formula: Ca₃Cr₂(SiO₄)₃. It was discovered in 1832 by Germain Henri Hess who named it after Count Sergei Semenovitch Uvarov (1765-1855), a Russian statesman and amateur mineral collector.

Uvarovite is one of the rarest of the garnet group minerals, and is the only consistently green garnet species, with a beautiful emerald-green color. It occurs as well-formed fine-sized crystals. Specimens of uvarovite are much sought after by collectors for outstanding brilliance and color.

It is found associated with chromium ores in Spain, Russia, and Quebec in Canada. It also occurs in Finland, Norway, and South Africa.

Uvarovite druse from Urals Region, Russia (size: 18.3 x 13.1 x 2.0 cm)

See also

• garnet
• almandine
• andradite
• grossular
• pyrope
• spessartine
• tsavorite
• geology
• mineral collecting
• mineral
• gemstone
• List of minerals
• List of minerals named after people

External links

• Mindat