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, often associated with other sulfides and oxides.
Uses & applications
Used historically for ignition of fire, manufacturing of sulfur and sulfuric acid, and popularly collected as a mineral specimen.
Geological facts
Commonly known as 'Fool's Gold' due to its metallic luster and pale yellow hue, which has frequently deceived inexperienced prospectors.
Field identification & locations
Identified by its brassy yellow color, cubic crystal habit, high specific gravity, and blackish green streak. Found worldwide in sedimentary, igneous, and metamorphic rocks.
