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Coquandite

Year of discovery: 1992 (Pereta, Italy), 2009 (Japan)

Locality list: A locality of coquandite

• Sb₆O₈(SO₄),H₂O
• [(SbO)⁺₆][O₂|SO₄]^6-,H₂O

• Class: Antimonyl - Sulfate - Oxide - Hydrate

• Color: Colorless, White
• Streak: White
• Luster: Adamantine
• Diaphaneity: Transparent-Translucent

• Cleavage: Perfect
• Hardness: 3-4

• System: Triclinic
• Group: (-1), P(-1)
• Lattice: a=11.4, b=29.8, c=11.3, α=91.1, β=119.2, γ=92.8