A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Orpiment and realgar from California |
|---|---|
| Description | Orpiment (yellow), As2S3 (arsenic sulfide), is a rare mineral that usually forms with realgar (pink), AsS (arsenic sulfide). In the past, these minerals have been major ores of arsenic. Arsenic is not in high demand today but was formerly used for pigments, as a firework coloring agent and for several other purposes. |
| Location | USA ▹ California |
| Photographer | Nessa Eull. 2001-07-17. |
| Collection | University of North Dakota Mineralogy Collection #88. |
| Key words | orpiment, realgar, California |
| Tech details | 695 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 1225 |
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