Formula: (Zn,Cu,Fe)SO4 .7H2O
Origin of name: from zinc and melanterite
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell: a = 14.05, b = 6.51, c = 11.03, β = 105.51°
Colour: Pale greenish blue, green, yellowish green, apple green
Diaphaneity: Transparent to translucent
Luster: Vitreous, resinous
Habit: Massive, columnar
Hardness: ~2
Specific gravity: 2.02
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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