Formula: (Ti,Zr)O2
Origin of name: after locality Sri Lanka
Crystal system: orthorhombic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: black, blackish brown
Diaphaneity:
Luster: submetallic to adamantine
Habit: 1 mm inclusions
Hardness: 6.5
Specific gravity:
Cleavage: 1
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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