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Uvarovite
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Uvarovite is a -bearing group species with the : 32(4)3. It was discovered in 1832 by Germain Henri Hess who named it after Count (1765–1855), a statesman and amateur mineral collector. It is classified in the group alongside the other calcium-bearing garnets and .

Uvarovite is the rarest of the common members of the garnet group, and is the only consistently green garnet species, with an emerald-green color. It occurs as well-formed fine-sized crystals.

Occurrence
Uvarovite most commonly occurs in with or , and is generally found associated with , , metamorphic limestones, and ore-bodies. File:garnet.uvarovite.500pix.jpg|Pendant in uvarovite, a rare bright-green garnet. The long dimension is 2 cm (0.8 inch) The most significant source of uvarovite historically has been a now-closed copper mine at Outokumpu, Finland, from where most museum specimens have been collected. The uvarovite crystals found in the Outokumpu district are among a wide range of chromium-rich silicate phases found in association with volcanogenic copper-cobalt-zinc sulfide ore deposits which are known to have an unusually high chromium content.

Uvarovite occurrences in the United States are predominantly found in the western portion of the country, including localities in , , and . In the eastern United States, uvarovite has been confirmed in Lancaster County, . The mineral has also been reported from eastern . 9 grains of uvarovite occur in a heavy mineral fraction of bulk stream sediment HM-10 collected in Bunker Hill creek, below the historic Bunker Hill gold mine, south of Nelson in British Columbia Canada. Its source is likely near serpentinites and argillaceous limestones within about 450 m upstream of the silt site.

Notable localities in Europe besides the Outokumpu site known to bear uvarovite include Røros, Norway; , Russia; , Italy; Pico do Posets near , Spain; , Turkey; and and , Russia. In Africa, uvarovite has been reported from the Bushveld Igneous Complex of , and from the Vumba Schist Belt in . In Asia, uvarovite has been reported from . and In , uvarovite has been reported from chromite deposits in southern New South Wales.

Properties
Minerals in the uvarovite-grossular series are stable up to temperatures of 1410 °C at low pressure.

See also
  • List of minerals named after people

External links
: , , ,
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