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Paratacamite (Photo)

Year of discovery: 1873 (Generosa mine, Chile, and Herminia mine, Chile), 1980 (Japan)

Locality list: 6 localities of paratacamite

• Cu₃(Cu,Zn)Cl₂(OH)₆
• [Cu²⁺₃][(Cu,Zn)²⁺][(OH)₆|Cl₂]^8-

• Class: Paratacamite group
• Class: Chloride - Hydroxide
• Soluble in: HCl, HNO₃, H₂SO₄

• (Cu,Zn) => Cu: Atacamite, Botallackite, Clinoatacamite, Anatacamite
• (Cu,Zn) => Zn: Herbertsmithite, Kapellasite
• (Cu,Zn) => Ni: Gillardite, Paratacamite-(Ni)
• (Cu,Zn) => Mg: Haydeeite, Paratacamite-(Mg)
• (Cu,Zn) => Mn: Misakiite

• Color: Green, Dark green
• Streak: Green
• Luster: Vitreous
• Diaphaneity: Translucent

• Cleavage: Good on {1011} (3 planes)
• Hardness: 3
• Density: 3.7

• System: Trigonal
• Group: (-3), (-3)m
• Lattice: a=13.7, c=14.0