mineral

Pyrite in Matrix

Iron Sulfide (FeS2) embedded in host rock

AI-generated identification · may be incorrect

Hardness: 6-6.5 on the Mohs scale; Color: Pale brass-yellow; Luster: Metallic; Crystal Structure: Isometric; Cleavage: Indistinct; Specific Gravity: 4.8-5.0

Hardness: 6-6
Color: Pale brass-yellow
Luster: Metallic

Identified August 3, 2026More mineral →

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Physical properties

Hardness: 6-6.5 on the Mohs scale; Color: Pale brass-yellow; Luster: Metallic; Crystal Structure: Isometric; Cleavage: Indistinct; Specific Gravity: 4.8-5.0

Formation & geological history

Formed in hydrothermal veins, sedimentary rocks, and metamorphic environments through the precipitation of iron and sulfur.

Uses & applications

Used in the production of sulfur and sulfuric acid, educational specimens, and occasionally in jewelry or decorative items.

Geological facts

Often nicknamed 'Fool's Gold' due to its superficial resemblance to real gold, though it is harder and more brittle.

Field identification & locations

Easily identified by its bright metallic brass-yellow color, high density, and cubic or pyritohedral crystal habit. Commonly found worldwide in association with other sulfide minerals.