Perovskite is a mineral relatively rare on the Earth's surface, occurring mainly in talc and chlorite schists. However, the mantle is believed to be quite rich in this mineral. The mineral was first discovered in the Urals.
You can see perovskite stone for sale and buy it in the Minerals of Russia online store.
General | |
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Category | Oxide minerals |
Formula (repeating unit) |
CaTiO3 |
IMA symbol | Prv |
Strunz classification | 4.CC.30 |
Crystal system | Orthorhombic |
Crystal class | Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m) |
Space group | Pnma |
Identification | |
Formula mass | 135.96 g/mol |
Color | Black, reddish brown, pale yellow, yellowish orange |
Crystal habit | Pseudo cubic – crystals show a cubic outline |
Twinning | complex penetration twins |
Cleavage | good |
Fracture | Conchoidal |
Mohs scale hardness | 5–5.5 |
Luster | Adamantine to metallic; may be dull |
Streak | grayish white |
Diaphaneity | Transparent to opaque |
Specific gravity | 3.98–4.26 |
Optical properties | Biaxial (+) |
Refractive index | nα = 2.3, nβ = 2.34, nγ = 2.38 |
Other characteristics | non-radioactive, non-magnetic |