Formula: (Zn,Cu) Al6(PO4)4(OH)8 . 4H2O
Origin of name: For George Faust, American mineralogist
Crystal system: Triclinic
Crystal class: -1
Twinning:
Unit cell:
Colour: Apple-green
Diaphaneity: Opaque
Luster: Waxy to dull
Habit: Massive, compact
Hardness: 5.5
Specific gravity: 2.92
Cleavage: None
Tenacity:
Streak: White to pale yellow-green
Synonyms/varieties:
Comments:
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