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Joséite-B, Joseite-B

Year of discovery: 1949 (São José mine (Tesoureiro mine), Brazil, and Glacier Gulch, Canada), 1963 (Japan)

Locality list: 12 localities of joséite-B

Bi₄Te₂S

Bi₄(Te,S)

[Bi³⁺₄][Te₂|S]

This may not be an independent species but only a S-bearing Pilsenite.

• Class: Joséite (Joseite) group
• Class: Telluride - Sulfide
• Te => Se: Laitakarite
• Te => S: Ikunolite
• S => Te: Pilsenite
• Te₂S => TeS₂: Joséite (Joseite)
• Color: Silver white
• Tarnish: Dark gray
• Streak: Gray
• Luster: Metallic
• Diaphaneity: Opaque
• Habit: Platy
• Cleavage: Perfect on {0001} (1 plane)
• Hardness: 2
• Density: 8.3
• System: Trigonal
• Group: (-3)m, R(-3)m
• Lattice: a=4.3, c=40.8

Etymology: Similarily to Joséite (Joseite)