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Hammarite

Year of discovery: 1924 (Gladhammar, Sweden), 2010 (Japan)

Locality list: A locality of hammarite

• Pb₂Cu₂Bi₄S₉
• [Pb²⁺₂][Cu⁺₂][Bi³⁺₄][S₉]^18-

• Class: Aikinite-Bismuthinite group < Rod-type Pb sulfosalts < Sulfosalt class
• Class: Sulfosalt

• Color: Reddish dark gray
• Streak: Black
• Luster: Metallic
• Diaphaneity: Opaque

• Cleavage: Good on {010} (1 plane)
• Hardness: 3-4
• Density: 6.7

• System: Orthorhombic
• Group: mmm, Pbnm
• Lattice: a=33.8, b=11.6, c=4.0