Formula: HFe3Al2(PO4)4F . 18H2O
Origin of name: For D. McAuslan
Crystal system: Triclinic
Crystal class: 1 or -1
Twinning:
Unit cell:
Colour: Yellowish white
Diaphaneity: Translucent
Luster: Vitreous, silky
Habit: Radiating bladed and fibrous crystals to 1 mm long forming clusters to 4 mm across
Hardness: 3.5
Specific gravity: 2.22
Cleavage: 1; Parallel to {001} good
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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