Joséite-B

FormulaBi4Te2S

Origin of name: For the relationship to joseite; "B" to distinguish it from joseite, formerly joseite-A.

 

Crystal system: Trigonal

Crystal class: 3 2/m

Twinning: 

Unit cell: a = 4.34, c = 40.83

 

Colour: Silver white, tarnishing to lead-gray

Diaphaneity: Opaque

Luster: Metallic

Habit: 

Hardness: 2

Specific gravity: 8.3

Cleavage: 1 perfect

Tenacity: Flexible

Streak: Gray

 

Synonyms/varieties:

 

Comments: 

 

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