Formula: Ni2(CO3)(OH)2.H2O
Origin of name: for C. Otway, Australian mine owner
Crystal system: orthorhombic
Crystal class: unknown
Twinning:
Unit cell:
Colour: bright green
Diaphaneity:
Luster: silky
Habit: fibrous, in rosette-like aggregates
Hardness: 4
Specific gravity: 3.41
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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