Composition: Cu5(Si2O6)2(OH)2
Crystal System : Orthorhombic
Colours: Sky-blue, cyan-blue
Lustre : Vitreous, silky
Hardness (H) : 3.5
Specific Gravity (S.G) : 4.11
References: Gebhard (1999)


Rare. Found sparingly throughout the deposit (Gebhard, 1999).


  • Supergene
  • 1st Oxidation Zone
  • 2nd Oxidation Zone
  • 3rd Oxidation Zone

Paragenetic and General Notes

Shattuckite occurs as dark blue, fibrous to granular masses, or as radiating spherules of microcrystals, the latter often coalescing to form botryoidal crusts.

Shattuckite is rare at Tsumeb, but common at a number of other northern Namibian localities.