mineral
Pyrite
Iron Sulfide (FeS2)
AI-generated identification · may be incorrectHardness of 6-6.5 on the Mohs scale, brassy yellow metallic luster, opaque with a blackish green streak, and cubic or octahedral crystal structure.
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Physical properties
Hardness of 6-6.5 on the Mohs scale, brassy yellow metallic luster, opaque with a blackish green streak, and cubic or octahedral crystal structure.
Formation & geological history
Forms in a wide variety of geological environments from hydrothermal veins to sedimentary rocks, often precipitated from reducing marine waters.
Uses & applications
Historically used to strike fire, currently utilized in the manufacture of sulfur and sulfuric acid, and popular in jewelry and mineral collections.
Geological facts
Commonly known as 'Fool's Gold' due to its superficial resemblance to gold, pyrite frequently forms striking cubic crystals that look artificially carved.
Field identification & locations
Identified easily by its brass-yellow color, high hardness that scratches glass, and brittle tenacity; found worldwide with notable deposits in Peru, Spain, and the USA.
