Protojoséite

Formula: Bi4TeS2

Origin of name: from resemblence to joséite

 

Crystal system: hexagonal

Crystal class: unknown

Twinning: 

Unit cell: 

 

Colour: 

Diaphaneity: 

Luster: 

Habit: 

Hardness

Specific gravity: 8.48 to 8.52

Cleavage: none

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments: dimorphous with joseite

 

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