Formula: Fe2As4(O,OH)9
Origin of name: Locality; Karibib pegmatite, Namibia
Crystal system: Orthorhombic
Crystal class: unknown
Twinning:
Unit cell: a = 27.91 Ǻ, b = 6.53 Ǻ, c = 7.20 Ǻ
Colour: Brownish-yellow
Diaphaneity:
Luster:
Habit: Fibrous, spindle-shaped bundles
Hardness: 1
Specific gravity: 4.07
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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