Hauerite

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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