Arsenate Minerals

Arsenate minerals usually refer to the naturally occurring orthoarsenates, possessing the (AsO4)3- anion group and, more rarely, other arsenates with anions like AsO3(OH)2- (also written HAsO42-) (example: pharmacolite Ca(AsO3OH).2H2O) or (very rarely) - (example: andyrobertsite). Arsenite minerals are much less common. Both the Dana and the Strunz mineral classifications place the arsenates in with the phosphate minerals.

Example arsenate minerals include:

  • Annabergite Ni3(AsO4)2·8H2O
  • Austinite CaZn(AsO4)(OH)
  • Clinoclase Cu3(AsO4)(OH)3
  • Conichalcite CaCu(AsO4)(OH)
  • Cornubite Cu5(AsO4)2(OH)4
  • Cornwallite Cu2+5(AsO4)2(OH)2
  • Erythrite Co3(AsO4)2·8H2O
  • Mimetite Pb6(AsO4)3Cl
  • Olivenite Cu2(AsO4)OH

Read more about Arsenate MineralsNickel–Strunz Classification -08- Phosphates