Formula: (Zn,Cu)10Al6(SO4)3(OH)32 . 18H2O
Origin of name: From Greek for blue-green and waxy
Crystal system: Hexagonal
Crystal class: Unknown
Twinning:
Unit cell:
Colour: White to sky-blue, gray, greenish, brownish
Diaphaneity:
Luster:
Habit: Massive, radial fibrous structure, concentric colour banding
Hardness: 1
Specific gravity: 2.4
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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