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3 kg was discovered in 1967 in the dry bed of the Hekandue River
Its wide range of colors and unique properties contribute to its popularity among mineral enthusiasts and collectors
Hyalite doesn't have the same internal structure of tiny spheres of silicon dioxide that cause precious opals to have brilliant displays of color
a South African mining engineer
He is a patron of the arts and sciences and known for his intellect and wisdom
77 gram Sulfur Crystal Specimen DM860 marcasite 3 kg was discovered in77 gram Sulfur Crystal Specimen Approx. Dimensions: 3x2. 25x2 inches Approx. Weight: 77 grams Locality: El Desierto Mine, Daniel Campos Province, Potosi Department, Bolivia Bright, gem quality sulfur crystal specimens from the famed El Desierto Mine in Potos, Bolivia. Each piece showcases rich, vibrant yellow hues with excellent clarity and well formed crystalline structure, making them exceptional additions to any mineral collection. Known for their
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