Formula: Pb2Ni3S2
Origin of name: for S. Shand, American petrologist
Crystal system: hexagonal
Crystal class: -3 2/m
Twinning:
Unit cell:
Colour: brass-yellow
Diaphaneity: opaque
Luster: metallic
Habit: embedded grains, massive
Hardness: 4
Specific gravity: 8.72
Cleavage: 1; {10-11} perfect
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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