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Tellurobismuthite

Year of discovery: 1863 (Mosnap mine, Norway, Boly Field mine, USA, and Little Mildred mine (Green mine), USA), 1932 (Japan)

Locality list: 21 localities of tellurobismuthite

• Bi₂Te₃
• [Bi³⁺₂][Te₃]^2-

• Class: Tetradymite group
• Class: Telluride
• Soluble in: concentrated H₂SO₄

• Bi => Sb: Tellurantimony (Series)
• Bi => As: Kalgoorlieite

• Te => Se: Paraguanajuatite, Guanajuatite
• Te => S: Bismuthinite

• Te₃ => Te₂S: Tetradymite
• Te₃ => Te₂Se: Kawazulite
• Te₃ => Se₂Te: Skippenite

• Color: Light gray
• Streak: Pale gray
• Luster: Metallic
• Diaphaneity: Opaque

• Habit: Platy

• Cleavage: Perfect on {0001} (1 plane)
• Hardness: 1.5-2
• Density: 7.8

• System: Trigonal
• Group: (-3)m, R(-3)m
• Lattice: a=4.4, c=29.9

Etymology: Chemical composition