Stibiocolusite

Formula: Cu26V2(Sb,Sn,As)6S32

Origin of name: from Latin stibium = antimony and colusite

 

Crystal system: cubic

Crystal class: -43m

Twinning:

Unit cell: 

 

Colour: dark gray

Diaphaneity: 

Luster: metallic

Habit: rounded grains, oval aggregates, submicroscopic particles

Hardness

Specific gravity: 4.66

Cleavage: none

Tenacity: 

Streak: gray

 

Synonyms/varieties:

 

Comments: 

 

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