Krutovite

Formula:  NiAs2

Origin of name:  For G. Krutov, Russian mineralogist

 

Crystal system:  Cubic

Crystal class:  23

Twinning: 

Unit cell: 

 

Colour:  Grayish-white

Diaphaneity:  Opaque

Luster:  Metallic

Habit:  Microscopic grains

Hardness:  5.5

Specific gravity:  6.93

Cleavage: 

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments:  Trimorphous with rammelsbergite and pararammelsbergite

 

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