Formula: Zn
Origin of name: from German Zink, original meaning unknown
Crystal system: Hexagonal
Crystal class: 6/m 2/m 2/m
Twinning:
Unit cell: a = 2.6591, c = 4.9353
Colour: Bluish grey
Diaphaneity: Opaque
Luster: Metallic
Habit: Ovoid or platy grain 15µm, in aggregates, irregular grains, as inclusions in other minerals
Hardness: 2
Specific gravity: 6.9 to 7.2
Cleavage: 1; {0001}perfect
Tenacity: Brittle, hackly
Streak: Greyish white
Synonyms/varieties:
Comments:
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