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.
