Rocks, Minerals & Ores
Metamorphic Rocks and Minerals
Pyrite
Iron sulfideEagle Mountain Mine, Riverside Co, CA
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Metamorphic Rocks and Minerals
Pyrite, chemically known as iron sulfide (FeS2), is one of the most widespread sulfide minerals. Its metallic luster and brassy yellow color have earned it the nickname "fool’s gold." Pyrite forms in a range of geological settings, including metamorphic rocks. At Eagle Mountain Mine in Riverside County, California, pyrite occurs in well-formed crystals, often associated with other iron-rich minerals. Despite its deceptive appearance, pyrite plays a significant role in ore processing and geochemical studies.