Hedleyite

Formula:  Bi7Te3

Origin of name:   After locality; Hedley, British Columbia, Canada

 

Crystal system:  Hexagonal

Crystal class:  -3 2/m

Twinning: 

Unit cell: 

 

Colour:  Tin-white; tarnishes iron-black

Diaphaneity:  Opaque

Luster:  Metallic

Habit:  Massive, lamellar; small plates

Hardness:  2

Specific gravity:  8.91

Cleavage:  1; {0001} perfect

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments: 

 

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