Formula: Ca3(Zr,Ti)2(Si,Al,Fe)3O12
Origin of name: For the Kimzey family, American mineral collectors
Crystal system: Cubic
Crystal class: 4/m -3 2/m
Twinning:
Unit cell: a = 12.46 Ǻ
Colour: Dark brown
Diaphaneity:
Luster: Vitreous
Habit: Crystals dodecahedrons modified by trapezohedrons, small
Hardness: ~ 7
Specific gravity: 4.0
Cleavage: None
Tenacity:
Streak: Light brown
Synonyms/varieties:
Comments:
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