mineral
Pyrite
Iron Sulfide (FeS2)
AI-generated identification · may be incorrectHardness of 6-6.5 on the Mohs scale, brassy yellow color, metallic luster, isometric crystal system, and a greenish-black streak.
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Physical properties
Hardness of 6-6.5 on the Mohs scale, brassy yellow color, metallic luster, isometric crystal system, and a greenish-black streak.
Formation & geological history
Forms in hydrothermal veins, sedimentary rocks, and replacement deposits across a wide range of geological temperatures.
Uses & applications
Historically used to strike fire, currently utilized in sulfur and sulfuric acid production, and popular as a mineral specimen in collections.
Geological facts
Commonly known as 'Fool's Gold' due to its superficial resemblance to real gold, though it is much harder and lighter.
Field identification & locations
Identified easily by its brassy metallic luster, cubic crystal habits, and brittle fracture; found globally in notable deposits in Spain, Peru, and the USA.
