Heterogenite


Composition: Co3+O(OH)
Crystal System : Trig. Hex.
Colours: Black, steel-grey
Lustre : Metallic, resinous, greasy
Hardness : 4.5
Specific Gravity : 3.07-4.37

Occurrence

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