mineral
Pyrite in Quartz Matrix
Iron Sulfide (FeS2) embedded in Silicon Dioxide (SiO2)
Hardness of 6-6.5 for pyrite and 7 for quartz on the Mohs scale, metallic brass-yellow luster for pyrite combined with vitreous white/gray quartz, opaque, uneven fracture, specific gravity around 4.9-5.2 for pyrite.
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Physical properties
Hardness of 6-6.5 for pyrite and 7 for quartz on the Mohs scale, metallic brass-yellow luster for pyrite combined with vitreous white/gray quartz, opaque, uneven fracture, specific gravity around 4.9-5.2 for pyrite.
Formation & geological history
Formed through hydrothermal vein deposition where mineral-rich hot fluids precipitate minerals into rock fractures over millions of years.
Uses & applications
Used as mineral specimens for collectors, decorative items, and historically as a source of sulfur and iron.
Geological facts
Pyrite is famously known as 'Fool's Gold' due to its metallic golden sheen, which has tricked many prospectors throughout history.
Field identification & locations
Can be identified by its brassy yellow metallic luster, high density, and brittle nature. Found worldwide in sedimentary, metamorphic, and igneous rocks.
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