Formula: FeFe2(PO4)2(OH)3 . 5H2O
Origin of name: From ferric iron (Fe3+) and strunzite
Crystal system: Triclinic
Crystal class: 1 or -1
Twinning:
Unit cell:
Colour: Brownish-yellow
Diaphaneity:
Luster:
Habit: Crystals acicular 2-30 µm long, as matted aggregates and radiating sprays to 2.6 mm across
Hardness:
Specific gravity: 2.38 to 2.50
Cleavage: 1; good
Tenacity:
Streak: Light yellow
Synonyms/varieties:
Comments:
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