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Rucklidgeite

Year of discovery: 1977 (Zod mine, Armenia, Robb-Montbray mine, Canada, and Kochkar' deposit, Russia), 1993 (Japan)

Locality list: 3 localities of rucklidgeite

• PbBi₂Te₄
• (Bi,Pb)₃Te₄
• [Pb²⁺][Bi³⁺₂][Te₄]^8-

• Class: Aleksite group < Trigonal layered Pb sulfosalts < Sulfosalt class
• Class: Telluro-salt

• Te => Se: Poubaite

• Te₄ => Te₂S₂: Aleksite

• Color: Silver white
• Streak: Light gray
• Luster: Metallic
• Diaphaneity: Opaque

• Habit: Foliated
• Aggregate: Intergrow with gold.

• Cleavage: {0001} Perfect (1 plane)
• Hardness: 2.5
• Density: 7.7

• System: Trigonal
• Group: (-3)m, R(-3)m
• Lattice: a=4.4, c=41.5

Etymology: Professor John Christopher. Rucklidge, who found related mineral of similar chemical composition for the first time.