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Conichalcite

Year of discovery: 1849 (Don Bonete mine, Spain), 1953 (Japan)

Locality list: 10 localities of conichalcite

• CaCuAsO₄(OH)
• [Ca²⁺][Cu²⁺][OH|AsO₄]^4-

• Class: Adelite group
• Class: Arsenate - Hydroxide
• Soluble in: HCl, HNO₃

• Ca => Pb: Duftite (Series)

• Cu => Zn: Austinite (Series)
• Cu => Co: Cobaltaustinite (Series)

• AsO₄ => VO₄: Tangeite (Series)
• AsO₄ => PO₄: Hermannroseite

• Color: Green, Yellowish green
• Streak: Pale green
• Luster: Vitreous
• Diaphaneity: Translucent

• Habit: Pyramidal
• Aggregate: Globular

• Cleavage: No
• Hardness: 4.5
• Density: 4.3

• System: Orthorhombic
• Group: 222, P2₁2₁2₁
• Lattice: a=7.4, b=9.2, c=5.8

Etymology: Konis (lime) - chalkos (copper) in Greek