mineral
Pyrite
Iron Sulfide (FeS2)
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
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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 a wide variety of geological environments, including hydrothermal veins, sedimentary rocks, and metamorphic rocks, often associated with other sulfide minerals.
Uses & applications
Historically used to strike fire, currently used in the manufacture of sulfur and sulfuric acid, and popular among mineral collectors and for jewelry.
Geological facts
Commonly known as 'Fool's Gold' due to its brassy metallic sheen resembling real gold, though it is much harder and leaves a greenish-black streak.
Field identification & locations
Can be identified in the field by its brassy yellow color, high specific gravity, metallic luster, and blackish or brownish-green streak. Found worldwide.
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