Formula: Bi2Te3
Origin of name: from composition containing tellurium and bismuth
Crystal system: Hexagonal
Crystal class: 3 2/m
Twinning:
Unit cell: a = 4.3852, c = 30.483
Colour: Pale lead-gray
Diaphaneity: Opaque
Luster: Metallic, splendent on fresh cleavages
Habit: Irregular plates, foliated masses, massive, fibrous
Hardness: 1.5 to 2
Specific gravity: 7.82
Cleavage: 1; {0001} perfect
Tenacity: Flexible but not elastic, slightly sectile
Streak: Pale lead-gray
Synonyms/varieties:
Comments: series with tellurantimony
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