Pharmacosiderite


Composition: KFe3+4(AsO4)3(OH)4.6-7H2O
Crystal System : Cubic
Lustre : Adamantine, dull
Hardness : 2.5
Specific Gravity : 2.8
References: Weber (1977)

Occurrence

  • Supergene
  • 1st Oxidation Zone
  • 2nd Oxidation Zone