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Bismuthinite (Photo)

Year of discovery: 1832 (World), 1899 (Japan)

Locality list: 186 localities of bismuthinite

• Bi₂S₃
• [][Bi³⁺][Bi³⁺][S₃]^6-

• Class: Aikinite-Bismuthinite series < Aikinite-Bismuthinite group < Rod-type Pb sulfosalts < Sulfosalt class
• Class: Sulfosalt
• Soluble in: HNO₃ (with bubbles)
• Insoluble in: HCl
• Substitution pseudomorph: Replaced by Bismutite.

• Bi => Sb: Stibnite, Metastibnite
• Bi => As: Orpiment
• Bi => Sn: Ottemannite
• Bi => Cr: Schreibersite
• Bi => Rh: Bowieite
• Bi => Ir: Kashinite

• []Bi => (CuPb)_0.17(Bi[])_0.83: Pekoite (Series)
• []Bi => (CuPb)_0.33(Bi[])_0.66: Gladite (Series)
• []Bi => (CuPb)_0.40(Bi[])_0.60: Salzburgite (Series)
• []Bi => (CuPb)_0.43(Bi[])_0.57: Paarite (Series)
• []Bi => (CuPb)_0.50(Bi[])_0.50: Krupkaite (Series)
• []Bi => (CuPb)_0.67(Bi[])_0.33: Emilite (Series)
• []Bi => (CuPb)_0.83(Bi[])_0.17: Friedrichite (Series)
• []Bi => CuPb: Aikinite (Series)

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

• S₃ => Te₂Se: Kawazulite
• S₃ => TeSe₂: Skippenite
• S₃ => Te₂S: Tetradymite

• Color: Lead gray
• Tarnish: Yellow, Iridescent
• Streak: Lead gray
• Luster: Metallic
• Diaphaneity: Opaque

• Habit: Prismatic, Acicular elongated to [001]
• Aggregate: Foliate, Massive
• Striation: [001]

• Cleavage: Perfect on {010} (1 plane), Imperfect on {100} and {110} (2 planes)
• Hardness: 2-2.5
• Density: 6.8

• System: Orthorhombic
• Group: mmm, Pbnm
• Lattice: a=11.1, b=11.3, c=4.0

Etymology: Chemical composition