  Atacamite.  
Description from the source: 
Atacamite (Cu+2 2 Cl (OH)3 orth.), La Farola Mine, Tierra Amarilla, Atacama, Chile. Dark green acicular crystals on matrix. 6x4x2 cm; 52 g. 
Source: Simone Citon 
Contributor: John Gray 
Acquired: 26 October, 2008 
Text Updated: 28 April, 2009 
Price: Trade 
Size: 2.35" 
Composition: Cu2[(OH)3|Cl]
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