Formula: CuFeO2
Origin of name: For G. Delafosse, French mineralogist
Crystal system: Hexagonal
Crystal class: -3 2/m
Twinning:
Unit cell:
Colour: Black
Diaphaneity: Opaque
Luster: Metallic
Habit: Crystals tabular to equant; massive; botryoidal, spherulitic
Hardness: 5.5
Specific gravity: 5.41
Cleavage: 1; {10-10} imperfect
Tenacity:
Streak: Black
Synonyms/varieties:
Comments:
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