mineral
Pyrite
Iron Sulfide, FeS2
AI-generated identification · may be incorrectHardness of 6-6.5 on the Mohs scale, brassy yellow color, metallic luster, isometric crystal system, and a blackish-green streak.
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Physical properties
Hardness of 6-6.5 on the Mohs scale, brassy yellow color, metallic luster, isometric crystal system, and a blackish-green streak.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through hydrothermal activity or low-temperature precipitation.
Uses & applications
Historically used to strike fire, currently used in lithium-ion batteries, sulfur extraction, and as a popular mineral specimen.
Geological facts
Commonly known as 'Fool's Gold' due to its superficial resemblance to real gold, though it is much harder and lighter.
Field identification & locations
Identified by its brassy color, high hardness that scratches glass, and cubic or clustered crystal habits. Found worldwide.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous