Iron arsenosulfide
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Description
Silvery gray crystals or masses. Iron arsenosulfide, or arsenopyrite, is the most common ore of Arsenic. It is found in Mexico (Mapimí), Sweden (Tunaberg) and the U.S. (Montana). As the ore weathers the sulfides are converted to oxides and the stone takes on a tarnished appearance.
Synonyms and Related Terms
iron arsenopyrite; pyrite; arsenical pyrite; arsenopyrite; white metal; mispickel
Physical and Chemical Properties
| Composition | FeSAs |
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Resources and Citations
- Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, Technology and Conservation, Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985
- Encyclopedia Britannica, http://www.britannica.com Comment: "arsenopyrite" [Accessed October 23, 2001].