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). Streak: Greenish-black to brownish-black. 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). Streak: Greenish-black to brownish-black. Specific gravity: 4.8-5.0.
Formation & geological history
Forms in a wide variety of geological environments, ranging from sedimentary rocks to hydrothermal vein deposits and metamorphic rocks, often formed at high to low temperatures.
Uses & applications
Historically used to strike fire, currently used in the manufacture of sulfur and sulfuric acid, and popular among mineral collectors.
Geological facts
Commonly known as 'Fool's Gold' due to its brassy metallic sheen resembling real gold, though it is much harder and lighter in weight than gold.
Field identification & locations
Easily identified by its brass-yellow color, high metallic luster, cubic crystal habit (when well-formed), and a dark streak compared to true gold. Found worldwide.
