Atacamite


Composition: Cu2Cl(OH)3
Crystal System : Orthorhombic
Lustre : Adamantine, vitreous
Hardness (H) : 3.0-3.5
Specific Gravity (S.G) : 3.74-3.78

Distribution

Very rare.  According to Pinch and Wilson (1977), "most specimens have been found in the upper (first) oxidation zone".

Occurrence

  • Supergene
  • 1st Oxidation Zone