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Joséite, Joseite

Year of discovery: 1853 (San José mine, Brazil), 1963 (Japan)

Locality list: 26 localities of joséite

• Bi₄TeS₂
• Bi₄(S,Te)₃
• [Bi³⁺₄][Te|S₂]
• This may not be an independent species but only a Te bearing Ikunolite.

• Class: Joséite (Joseite) group
• Class: Telluride - Sulfide

• S => Te: Pilsenite

• TeS₂ => S₃: Ikunolite
• TeS₂ => Te₂S: Joséite-B (Joseite-B)
• TeS₂ => Se₂S: Laitakarite

• Color: Silver white
• Tarnish: Dark gray
• Streak: Gray
• Luster: Metallic
• Diaphaneity: Opaque

• Habit: Platy

• Cleavage: Perfect on {0001} (1 plane)
• Hardness: 2
• Density: 8.1

• System: Trigonal
• Group: (-3)m, R(-3)m
• Lattice: a=4.3, c=39.8

Etymology: San José (San Jose) in Brazil

Synonym: Joséite-A, Joseite-A