Formula: (Os,Ir)
Origin of name: From composition
Crystal system: Hexagonal
Crystal class: 6/m 2/m 2/m
Twinning:
Unit cell:
Colour: White, with bluish-gray tinge in reflected light
Diaphaneity: Opaque
Luster: Metallic
Habit: Rounded grains, rarely hexagonal cross section
Hardness: 6 to 7
Specific gravity: 22.15
Cleavage: None
Tenacity:
Streak: Grey
Synonyms/varieties:
Comments:
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