Formula: MnS2
Origin of name: For J. and F. von Hauer, Austrian geologists
Crystal system: Cubic
Crystal class: 2/m -3
Twinning:
Unit cell:
Colour: Reddish brown to brownish black
Diaphaneity: Opaque
Luster: Metallic-adamantine to dull
Habit: Crystals octahedral or cubo-octahedral; globular aggregates
Hardness: 4
Specific gravity: 3.46
Cleavage: 1; {001} perfect
Tenacity:
Streak: Brownish red
Synonyms/varieties:
Comments:
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