mineral
Pyrite
Iron Sulfide (FeS2)
AI-generated identification · may be incorrectHardness of 6-6.5 on Mohs scale, pale brass-yellow color, metallic luster, isometric crystal system with cubic or octahedral habits.
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Physical properties
Hardness of 6-6.5 on Mohs scale, pale brass-yellow color, metallic luster, isometric crystal system with cubic or octahedral habits.
Formation & geological history
Forms in hydrothermal veins, sedimentary rocks, and metamorphic deposits through low-temperature precipitation from aqueous solutions.
Uses & applications
Historically used to strike fire, currently utilized in production of sulfur dioxide and sulfuric acid, and popular in mineral collections.
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 metallic sheen, dark streak, and brittle nature; found worldwide in association with other sulfide minerals.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Limonite
FeO(OH)•nH2O
mineral
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