Formula: Ca(Ni,Zn)(AsO4)I(OH)
Origin of name: from nickel and austinite
Crystal system: orthorhombic
Crystal class: 222
Twinning:
Unit cell:
Colour: yellow-green to grass-green
Diaphaneity:
Luster: silky
Habit: flattened fibrous crystals
Hardness: 4
Specific gravity:
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments: Ni analogue of austinite
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