Covellite

Covellite


Composition: CuS
Crystal System : Hexagonal
Colours: Indigo-blue
Lustre : Sub-metallic
Hardness (H) : 1.5-2.0
Specific Gravity (S.G) : 4.60-4.76

Distribution

Rare. Mainly in the first oxidation zone, but also on 44 and 45 levels in the third oxidation zone (Gebhard 1999).

Occurrence

  • Supergene
  • 1st Oxidation Zone
  • 3rd Oxidation Zone

Notable Finds

As mm-sized crystals in the third oxidation zone on 44 and 45 levels (Gebhard, 1999).

Paragenetic and General Notes

Occurs widely in the first oxidation zone as thin coatings, crusts and fracture-fillings in sulphide (chalcocite or digenite) ore. Occasionally larger masses of covellite were found (Pinch and Wilson, 1977). Sometimes as scales on anglesite or cerussite (Keller, 1977).