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Cannonite

Year of discovery: 1992 (Tunnel Extension No.2 mine, USA), 2000 (Japan)

Locality list: 2 localities of cannonite

• Bi₂O(OH)₂(SO₄)
• Bi₂O(OH,F)₂(SO₄)
• [Bi³⁺₂][O|(OH)₂|SO₄]^6-

• Class: Sulfate - Oxide - Hydroxide

• Color: Colorless
• Streak: White
• Luster: Adamantine
• Diaphaneity: Transparent

• Cleavage: No
• Hardness: 4
• Density: 6.5

• System: Monoclinic
• Group: 2/m, P2₁/c
• Lattice: a=7.7, b=13.9, c=5.7, β=109.2