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This large pyrite specimen showcases the metallic luster and brassy-gold color that have earned it the nickname "fool’s gold." Its crystalline structure makes it an excellent example of natural mineral geometry. Details: Mineral Group: Sulfide Chemical Formula: FeS₂ (iron sulfide) Size: Approximately 4–5 inches long Appearance: Metallic, golden surface with cubic or clustered crystal formations Formation: Commonly forms in hydrothermal veins, sedimentary deposits, and metamorphic rocks Physical Properties: Mohs hardness 6–6.5; metallic luster; brittle with a greenish-black streak Educational Value: Demonstrates crystal habit, sulfide mineralogy, and the role of iron compounds in Earth’s geology This pyrite specimen is a substantial and visually striking piece that highlights both the beauty and scientific importance of mineral formation.
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🇺🇸 Ship from USA · On Agora since 2024
$64.99