Formula: KCuFe15(PO4)12(OH)12.12H2O
Origin of name: combination of composition phosphate and fibrous
Crystal system: orthorhombic
Crystal class: 2/m /2m 2/m
Twinning:
Unit cell:
Colour: yellow to yellow-green
Diaphaneity:
Luster: vitreous
Habit: crystals fibrous, to 0.5 mm, in radial aggregates
Hardness: 4
Specific gravity: 2.90
Cleavage: 1; perfect, along a pinacoid
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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