mineral
Pyrite
Iron Sulfide (FeS2)
AI-generated identification · may be incorrectHardness 6-6.5 on Mohs scale, brassy yellow color, metallic luster, isometric crystal system, specific gravity 4.8-5.0.
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Physical properties
Hardness 6-6.5 on Mohs scale, brassy yellow color, metallic luster, isometric crystal system, specific gravity 4.8-5.0.
Formation & geological history
Forms in hydrothermal veins, sedimentary rocks, and metamorphic deposits through low-temperature precipitation.
Uses & applications
Used historically for sparking fire, in the production of sulfur dioxide and sulfuric acid, and popularly as a mineral specimen.
Geological facts
Commonly known as 'Fool's Gold' due to its superficial resemblance to gold, though it is harder and more brittle.
Field identification & locations
Identified by its brass-yellow color, cubic crystal habits, and dark greenish-black streak. Found worldwide, notably in Peru, Spain, and the USA.
