Mineralogy Database

Orpiment Mineral Data

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General Orpiment Information

Help on Chemical  Formula: Chemical Formula: As2S3
Help on Composition: Composition: Molecular Weight = 246.04 gm
   Arsenic  60.90 %  As
   Sulfur   39.10 %  S
           100.00 % 
Help on Empirical Formula: Empirical Formula: As2S3
Help on Environment: Environment: Low temperature hydrothermal veins, hot springs, and fumaroles; also commony as an alteration product of arsenic minerals, especially realgar.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1747
Help on Locality: Locality: Common world wide. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Latin, auripigmentum, in allusion to the vivid golden hue.
Help on Name Pronunciation: Name Pronunciation: Orpiment Say ORPIMENT
Help on Synonym: Synonym: ICSD 15239
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