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Cuprobismutite

Year of discovery: 1884 (Missouri mine, USA), 1996 (Japan)

Locality list: 2 localities of cuprobismutite

• Cu₈AgBi₁₂S₂₄
• [Cu₈][Ag][Bi³⁺₁₂][S₂₄]

• Class: Cuprobismutite group < Large 2D fragment Pb sulfosalts < Sulfosalt class
• Class: Sulfosalt

• Color: Dark bluish gray
• Luster: Metallic
• Diaphaneity: Opaque

• Density: 6.7

• System: Monoclinic
• Group: 2/m, C2/m
• Lattice: a=17.5, b=3.9, c=15.3, β=100.2