thumb
Claudetite is an arsenic oxide mineral with chemical formula As<sub>2</sub>O<sub>3</sub>. Claudetite is formed as an oxidation product of arsenic sulfides and is colorless or white. It can be associated with arsenolite (the cubic form of As<sub>2</sub>O<sub>3</sub>) as well as realgar (As<sub>4</sub>S<sub>4</sub>), orpiment (As<sub>2</sub>S<sub>3</sub>) and native sulfur.