Formula: ZnFe4(SO4)6(OH)2 .18H2O
Origin of name: from zinc and Copiapite
Crystal system: Triclinic
Crystal class: 1
Twinning:
Unit cell: a = 7.35, b = 18.16, c = 7.28, α = 93.833°, β = 101.5°, γ = 99.367°
Colour: Yellow-green
Diaphaneity: Transparent to translucent
Luster: Vitreous
Habit: Massive, compact
Hardness: ~2
Specific gravity: 2.18
Cleavage: 1 Perfect
Tenacity:
Streak: Greenish yellow
Synonyms/varieties:
Comments: Zn analogue of copiapite
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