Product Details

10.51 Cts Natural MultiColors Sphalerite Trillion Cut From Spain Sphalerite is a zinc sulfide mineral prized by collectors for its extraordinary dispersion and vibrant multicolor flashes. Faceted material from Spain, particularly from the famous deposits of Cantabria, is considered some of the finest gem-quality sphalerite available. When cut in shapes such as a trillion, the gemstone displays remarkable brilliance and dramatic spectral fire. Mineralogical Information • Mineral species: Sphalerite • Chemical formula: ZnS • Crystal system: Isometric (Cubic) • Hardness: 3.5–4 (Mohs) • Refractive index: ~2.37–2.42 • Dispersion: ~0.156 (exceptionally high) Color • Yellow • Orange • Red • Brown • Often shows multicolor flashes due to extremely high dispersion Major Source • Cantabria region, northern Spain, known for producing the world’s finest gem-quality sphalerite Appearance and Optical Properties • Exceptional fire and spectral dispersion, among the highest of any gemstone • Very high refractive index producing strong brilliance • Stones often display dramatic rainbow flashes when properly cut Collector Notes • Because of its low hardness and perfect cleavage, sphalerite is mainly a collector gemstone rather than for everyday jewelry • Well-cut Spanish sphalerite, especially in trillion or brilliant cuts, is highly prized for its intense optical performance