mineral

Pyrite-bearing rock (likely pyrite-rich ore)

Pyrite, FeS₂, in a fine-grained host rock

AI-generated identification · may be incorrect

Brassy to silvery metallic sparkle with granular crystals; pyrite has cubic/isometric crystal structure, Mohs hardness 6–6.5, and specific gravity about 5.0. The dark host and crystal habit are not clear enough in the image to identify the matrix confidently.

Identified September 27, 2026More mineral →

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Physical properties

Formation & geological history

Pyrite forms in hydrothermal veins and sedimentary or metamorphic environments through reaction of iron and sulfur; the specimen’s age and exact formation setting cannot be determined visually.

Uses & applications

Pyrite is collected as a mineral specimen and has been used as a sulfur source; it is generally not used for jewelry or construction.

Geological facts

Often called “fool’s gold,” pyrite is harder and more brittle than gold and may form cubes or granular masses.

Field identification & locations

Look for a brassy metallic color, sharp reflective grains, and a dark streak; pyrite is common worldwide in sedimentary rocks and mineral veins. Image alone cannot confirm whether all the reflective grains are pyrite.