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Uvarovite Gemstone Information

Uvarovite is an emerald green garnet named after Sergei Semenovitch Uvarov a Russian statesman and mineral collector. It was named by Germain Henri Hess, the Swiss born Russian chemist, who discovered the variety of garnet in the Ural Mountains of Russia in 1832.

Uvarovite occurs as very small crystals formed on a host rock or matrix, commonly serpentine. Small crystals in this form are called a druse and are too small to work, as individual crystals. However, the druse is fashioned by cutting and mounting the host rock into suitable settings such as pendants and rings.

Good quality Uvarovite has a high concentration of crystals on the host rock and a richly saturated deep green colour.

Source locations for Uvarovite include: Canada (Quebec), Finland, Norway, Spain, Russia (Ural mountains) and South Africa.

Physical Properties

Stone type:
A variety of the garnet group.
Crystal System:
Cubic (isometric) formed on a host rock.
Chemical Composition:
Ca3Cr2(SiO4)3
Colour:
The colouring agent is chromium, producing an attractive emerald green colour.
Lustre:
Vitreous.
Pleochroism:
Absent.
Dispersion:
Medium.
Hardness:
7½ on the Mohs' scale of hardness.
Toughness:
Good.
Cleavage:
None.
Density in gm/cc:
3.77
Double refraction:
None.
Refractive index:
-

Common Treatments

Uvarovite is not normally treated.


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