mineral

Small gold-colored mineral crystal, likely pyrite

Pyrite (FeS₂), tentatively; native gold is a less likely alternative

AI-generated identification · may be incorrect

Brassy yellow metallic luster with angular crystal faces; pyrite hardness 6–6.5, cubic crystal system, poor cleavage, and specific gravity about 5.0. The image is insufficient to confirm color, streak, or density.

Identified August 15, 2026More mineral →

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At a glance

Common name: Small gold-colored mineral crystal, likely pyrite
Scientific name: Pyrite (FeS₂), tentatively; native gold is a less likely alternative
Category: mineral
Identified: August 15, 2026
Method: Standard

AI Estimated Value

About $1–$10 for a tiny common pyrite fragment; substantially more only if crystals are unusually sharp, large, or from a documented locality.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

Pyrite forms in hydrothermal veins and sedimentary or metamorphic rocks through sulfide mineralization, spanning many geological ages. Native gold commonly occurs in quartz veins or placer deposits and is much softer and denser.

Uses & applications

Pyrite is collected and historically used as a sulfur source and in limited industrial applications; gold is used in jewelry and electronics. This tiny specimen has mainly educational or novelty value.

Geological facts

Pyrite is called “fool’s gold,” but genuine gold is malleable and leaves a yellow streak, whereas pyrite is brittle and leaves a dark greenish-black streak.

Field identification & locations

Test cautiously: pyrite commonly shows cubic or striated faces, while gold bends or dents rather than crumbles; a streak test and specific-gravity measurement are useful. Common localities include Peru, Spain, Italy, China, and numerous sulfide-mining regions.