mineral

Likely pyrite-bearing rock

Pyrite (FeS₂), possibly disseminated in a host rock

AI-generated identification · may be incorrect

Brassy gray-gold, metallic sparkle, with granular crystals; pyrite has Mohs hardness 6–6.5 and an isometric crystal structure. The image does not show enough detail to identify the host rock or confirm pyrite.

Identified October 7, 2026More mineral →

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Physical properties

Formation & geological history

Pyrite forms in hydrothermal veins and sedimentary or metamorphic settings, often through sulfur-bearing fluids reacting with iron. Its age depends on the host deposit.

Uses & applications

Pyrite is collected as a mineral specimen and historically used as a source of sulfur and, less commonly, iron; it is not typically used as jewelry or building stone.

Geological facts

Pyrite is called “fool’s gold,” but is harder and more brittle than gold. Avoid prolonged wet storage, as pyrite can oxidize and deteriorate.

Field identification & locations

The glittering brassy grains suggest pyrite, but a closer view or tests would be needed to distinguish it from other metallic minerals. It occurs worldwide in many rock types.