Formula: (Zr,Ti,Ca)O2
Origin of name: after locality Tazheran massif, west of Lake Baikal, Russia
Crystal system: Cubic/Isometric
Crystal class: 4/m 3 2/m
Twinning:
Unit cell: a = 5.111
Colour: Yellowish orange to reddish orange, rarely cherry red, then zoned, brownish green
Diaphaneity: Translucent
Luster: Adamantine to greasy on fractures
Habit: Crystals thick tabular or rounded, 0.01 to 0.2 mm, rare to 1.5 mm, and as irregular grains
Hardness: 7.5
Specific gravity: 5.01
Cleavage: None
Tenacity: Brittle, conchoidal fracture
Streak: White
Synonyms/varieties:
Comments:
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