Crystal System: Cubic
Status of Occurrence: Unconfirmed Occurrence
Distribution: Rare
Chemical Composition: Arsenic oxide
Chemical Formula: As2O3
Method(s) of Verification: none.

Chemical Group:

  • Oxides & Hydroxides
Introduction: arsenolite typically develops as a supergene alteration product of primary hydrothermal arsenic-bearing minerals.
Occurrence in Wales: arsenolite is one of a number of minerals listed from the Dolgellau Gold-belt by Readwin (1888) and not found, despite much investigation, since. It is therefore regarded as a dubious occurrence.

Key Localities:

There are no key localities for this specimen.


  1. Readwin, T.A., 1888. Gold in Wales. London, 12pp.