A striking mineral specimen featuring stibnite, a lead sulfide mineral, showcasing a metallic luster and needle-like crystals.
Geological Information:
- Location: USA (notably in Idaho, California, Nevada, and Alaska) - Type: Stibnite (Lead Sulfide, Sb₂S₃) - Formation: Hydrothermal veins in volcanic and sedimentary rocks, often associated with quartz and other sulfide minerals - Color: Lead-gray to silvery-white - Hardness: 2 on the Mohs scale - Crystal System: Orthorhombic - Formation Process: Low-temperature hydrothermal activity and precipitation of lead and sulfur ions resulted in the formation of stibnite. - Age: Cenozoic Era, approximately 25-0.01 million years old - Occurrence: Found in limited quantities, primarily in the western United States, particularly in the Coeur d'Alene District (Idaho), the Sierra Nevada (California), and the Comstock Lode (Nevada).
This detailed description highlights the natural beauty, unique features, and geological significance of Stibnite from the USA, showcasing its rarity and mineralogical importance.
