Rock Identifier
Pyrite (Iron Sulfide (FeS2)) — mineral
mineral

Pyrite

Iron Sulfide (FeS2)

AI-generated identification · may be incorrect

Hardness of 6-6.5 on the Mohs scale, brass-yellow color, metallic luster, cubic crystal system, indistinct cleavage, and specific gravity around 5.0.

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Physical properties

Hardness of 6-6.5 on the Mohs scale, brass-yellow color, metallic luster, cubic crystal system, indistinct cleavage, and specific gravity around 5.0.

Formation & geological history

Forms in hydrothermal veins, sedimentary rocks, and metamorphic deposits through the reaction of iron and sulfur under varying temperature conditions.

Uses & applications

Historically used for striking fire, currently utilized in sulfur and sulfuric acid production, and popular as a mineral specimen for collectors.

Geological facts

Commonly known as 'Fool's Gold' due to its superficial resemblance to gold, though it has a darker streak and harder texture.

Field identification & locations

Identified by its brassy metallic luster, high density, and cubic crystal habits; found worldwide in sedimentary, igneous, and metamorphic rock formations.