
mineral
Pyrite
Iron Sulfide (FeS2)
AI-generated identification · may be incorrectMohs hardness of 6-6.5, brass-yellow color, metallic luster, cubic crystal system, conchoidal fracture, specific gravity of 5.0.
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Physical properties
Mohs hardness of 6-6.5, brass-yellow color, metallic luster, cubic crystal system, conchoidal fracture, specific gravity of 5.0.
Formation & geological history
Forms in hydrothermal veins, sedimentary rocks, and replacement deposits across various geological eras from low to high temperatures.
Uses & applications
Used historically for sparking fire, in the production of sulfur and sulfuric acid, and popularly as a mineral specimen for collectors.
Geological facts
Commonly known as 'Fool's Gold' due to its superficial resemblance to actual gold, though it is much harder and lighter.
Field identification & locations
Identified by its brassy metallic color, high hardness that scratches glass, and dark streak; found worldwide in sedimentary and metamorphic deposits.