Uvarovite
is the rarest of the familiar Garnets, and is seldom used as a gem. The term Garnet describes a group name for several closely related minerals that form important gemstones, and Uvarovite is an individual member mineral of the Garnet group. It only occurs in very small crystals, and crystals are rarely large enough for faceting. The color of Uvarovite is a deep chrome-green, and Uvarovite is a unique Garnet being that it only comes in one color.
| Chemical Formula | Ca3Cr2Si3O12 |
| Color | Green |
| Hardness | 6.5Â -Â 7 |
| Crystal System | Isometric |
| Refractive Index | 1.860Â -Â 1.870 |
| SG | 3.7Â -Â 3.8 |
| Transparency | Transparent to translucent |
| Double Refraction | None |
| Luster | Adamantine |
| Cleavage | None |
| Mineral Class | Uvarovite (Garnet) |
is the rarest of the familiar Garnets, and is seldom used as a gem. The term Garnet describes a group name for several closely related minerals that form important gemstones, and Uvarovite is an individual member mineral of the Garnet group. It only occurs in very small crystals, and crystals are rarely large enough for faceting. The color of Uvarovite is a deep chrome-green, and Uvarovite is a unique Garnet being that it only comes in one color.
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