  Atacamite.
Description from the source:
Atacamite (Cu+22 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
Price: Trade
Size: 2.35"
Composition: Cu+22Cl(OH)3
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