Orpiment (As2S3) and realgar (AsS) are ores of arsenic. In the United States, major deposits of these minerals are in Mercer, Utah, and Manhattan, Nevada. They are no longer mined because arsenic is rarely used today.
Photographer
Nessa Eull. 2001-07-17.
Collection
University of North Dakota Mineralogy Collection #3171.
Key words
realgar, orpiment
Tech details
668 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.