Davidlloydite


Composition: Zn3(AsO4)2.4H2O
Crystal System : Triclinic
Colours: Colourless
Lustre : Vitreous
Hardness (H) : 3-4
Specific Gravity (S.G) : 3.66
Year of Discovery: 2011
IMA Number: 2011-053
IMA Status: Approved
Named for: David Lloyd (British collector / dealer)

 Tsumeb is the Type Locality

Distribution

Extremely rare. Third oxidation zone (44 Level).

Occurrence

  • Supergene
  • 3rd Oxidation Zone

Paragenetic and General Notes

Davidlloydite is the arsenate analogue of parahopeite, but is not strictly isotypic with it. Sub-parallel to divergent prismatic crystals form colourless aggregates to 0.5 mm in powdery calcioandyrobertsite.