Formula: CaTiO3
Origin of name: for Count Lev Perovski, Russian mineralogist
Crystal system: orthorhombic, pseudocubic
Crystal class: 2/m 2/m 2/m
Twinning: common about [101] axis, rare about [121] axis, penetration, lamellar or sector
Unit cell: a = 5.441 Å, b = 7.644 Å, c = 5.381 Å
Colour: black, dark brown, amber to yellow
Diaphaneity:
Luster: adamantine, dull, metallic
Habit: crystals pseudocubic, often highly modified, or pseudo-octahedral, massive granular or reniform
Hardness: 5.5
Specific gravity: 4.01
Cleavage: 1; {001} imperfect
Tenacity: subconchoidal to uneven, brittle
Streak: colourless to pale gray
Synonyms/varieties: dysanalyte (Nd-rich variety)
Comments:
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