Formula: NiSe2
Origin of name: For G. Kullerud, Norwegian - American geochemist
Crystal system: Orthorhombic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: Lead-gray
Diaphaneity: Opaque
Luster: Metallic
Habit: Massive, fine-grained
Hardness: 1
Specific gravity: 6.72
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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