gemstone
Spessartine Garnet
Manganese aluminum silicate, Mn3Al2(SiO4)3
AI-generated identification · may be incorrectHardness of 6.5 to 7.5 on the Mohs scale. Exhibits a reddish-orange to yellowish-orange color with a vitreous to subadamantine luster and isometric crystal system.
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Physical properties
Hardness of 6.5 to 7.5 on the Mohs scale. Exhibits a reddish-orange to yellowish-orange color with a vitreous to subadamantine luster and isometric crystal system.
Formation & geological history
Forms in granitic pegmatites, metamorphic manganese-rich rocks, and hydrothermal veins through regional and contact metamorphism.
Uses & applications
Primarily used as a faceted gemstone in high-end jewelry and valued as a collector mineral specimen.
Geological facts
Spessartine gets its vivid orange color from manganese. Fine gem-grade specimens are often sourced from Namibia and Nigeria.
Field identification & locations
Identify by its distinct orange-red color, high refractive index, and conchoidal fracture. Common in pegmatite pockets worldwide.
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