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Physical Properties

Color black
Form/Habit foliated masses
Lusture sub metallic
Streak black
Hardness 1-2
Cleavage perfect 1 set basal
Fracture flaky
Specific Gravity 2.1-2.2 (low)
Chemical Composition C
Crystal System hexagonal (rhombohedral)
Diagnostic Properties sub metallic lusture, perfect 1 set basal cleavage, flaky fractures

Remarks

Gallery