
mineral
Pyrite
Iron Sulfide (FeS2)
AI-generated identification · may be incorrectHardness: 6-6.5 on 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 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 processes, ranging from magmatic segregation to hydrothermal veins and sedimentary environments, often associated with reducing conditions.
Uses & applications
Used historically as a source of sulfur and sulfuric acid, in modern times for manufacturing sulfur dioxide, and popularly as a mineral specimen for collectors and jewelry.
Geological facts
Commonly known as 'Fool's Gold' due to its superficial resemblance to gold, pyrite can actually contain trace amounts of real gold.
Field identification & locations
Identified by its brassy yellow color, metallic luster, dark streak, and higher hardness compared to real gold. Found worldwide in sedimentary, igneous, and metamorphic rocks.