Muthmannite

Formula:  (Ag,Au)Te

Origin of name:  For F. Muthmann, German chemist

 

Crystal system:  Unknown

Crystal class:  Unknown

Twinning: 

Unit cell: 

 

Colour:  Bright brass-yellow; gray-white on fresh fracture

Diaphaneity:  Opaque

Luster:  Metallic

Habit:  Crystals, elongated tablets

Hardness:  2.5

Specific gravity:  5.598

Cleavage:  1; perfect

Tenacity: 

Streak:  Iron-gray powder

 

Synonyms/varieties:

 

Comments: 

 

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