mineral
Pyrite
Iron Sulfide (FeS2)
AI-generated identification · may be incorrectHardness: 6-6.5 on the Mohs scale. Color: Pale brass-yellow. Luster: Metallic. Crystal structure: Isometric (cubic). Cleavage: Indistinct. Specific gravity: 4.8-5.0.
- Hardness
- 6-6
- Color
- Pale brass-yellow
- Luster
- Metallic
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Physical properties
Hardness: 6-6.5 on the Mohs scale. Color: Pale brass-yellow. Luster: Metallic. Crystal structure: Isometric (cubic). Cleavage: Indistinct. Specific gravity: 4.8-5.0.
Formation & geological history
Forms in a wide variety of geological environments, from hydrothermal veins to sedimentary rocks and metamorphic deposits, spanning a vast range of geological ages.
Uses & applications
Used historically as a source of sulfur and iron, currently used in the manufacture of sulfur dioxide and sulfuric acid, and popular among mineral collectors and in jewelry.
Geological facts
Commonly known as 'Fool's Gold' due to its superficial resemblance to gold, pyrite can produce sparks when struck against metal, which historically made it useful for fire-starting.
Field identification & locations
Easily identified by its brass-yellow color, metallic luster, high hardness (scratches glass, unlike real gold), and frequent cubic crystal habit. Found worldwide.
