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Faustite

Year of discovery: 1953 (Copper King mine, USA), 1996 (Japan)

Locality list: A locality of faustite

• ZnAl₆(PO₄)₄(OH)₈,4H₂O
• (Zn,Cu)Al₆(PO₄)₄(OH)₈,4H₂O
• [Zn²⁺][Al³⁺₆][(OH)₈|(PO₄)₄]^20-,4H₂O

• Class: Turquoise group
• Class: Phosphate - Hydroxide - Hydrate

• Zn => Cu: Turquoise
• Zn => H₂: Planerite
• Zn => Fe: Aheylite

• Color: Yellowish green
• Streak: Pale yellowish green
• Luster: Waxy
• Diaphaneity: Translucent-Opaque

• Cleavage: Indistinct
• Hardness: 5.5
• Density: 2.9

• System: Triclinic, Pseudocubic
• Group: (-1), P(-1)
• Lattice: a=7.4, b=9.9, c=7.7, α=107.8, β=115.7, γ=69.7