Sulfide mineral
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The sulfide minerals are a class of minerals containing sulfide or disulfide as the major anion. Some sulfide minerals are economically important as metal ores. The sulfide class also includes the sel
Pyrite
Stibnite
Realgar
Realgar
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Realgar, also known as arsenic blende, ruby sulphur or ruby of arsenic, is an arsenic sulfide mineral with the chemical formula α-As4S4. It is a soft mineral occurring in monoclinic crystals, or in gr
Sulfide mineral
…Cinnabar HgS Realgar AsS Orpiment As2S3…
Cluster of realgar crystals from Getchell Mine, Adam Peak, Potosi District, Humboldt County, Nevada, United States
Cherry-red realgar crystals atop a matrix, and a sharp acicular spray of the rare species picropharmacolite (white needles) below
Crystals of realgar, quartz, chalcopyrite and galena, from Quiruvilca Mine, La Libertad, Peru