Rock Identifier
Pyrite-bearing Rock / Pyrite Ore (Iron Sulfide (FeS2) in host rock matrix) — mineral
mineral

Pyrite-bearing Rock / Pyrite Ore

Iron Sulfide (FeS2) in host rock matrix

Hardness of 6-6.5 on the Mohs scale, brassy yellow to golden-brown metallic color, metallic luster, cubic crystal habit often seen as fine disseminated grains or clusters, specific gravity around 4.8-5.0, conchoidal to uneven fracture.

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Physical properties

Hardness of 6-6.5 on the Mohs scale, brassy yellow to golden-brown metallic color, metallic luster, cubic crystal habit often seen as fine disseminated grains or clusters, specific gravity around 4.8-5.0, conchoidal to uneven fracture.

Formation & geological history

Formed in a wide variety of geological environments, including hydrothermal ore veins, sedimentary rocks, and metamorphic deposits, often precipitated from sulfur-rich aqueous solutions at various temperatures.

Uses & applications

Historically used to strike fire, currently used in the manufacture of sulfur and sulfuric acid, and popular among mineral collectors.

Geological facts

Commonly known as 'Fool's Gold' due to its superficial resemblance to gold, pyrite frequently sparks confusion for amateur prospectors.

Field identification & locations

Easily identified by its brassy metallic luster, high hardness (cannot be scratched with a knife unlike gold), and brittle nature. Found globally, matching the rich metallogenic provinces of the Andes near the provided coordinates in Chile.