gemstone
Spessartine Garnet
Manganese aluminum silicate, Mn3Al2(SiO4)3
AI-generated identification · may be incorrectHardness 6.5-7.5 on the Mohs scale, orange to reddish-brown color, vitreous luster, isometric crystal system with no cleavage, and specific gravity around 4.12.
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Physical properties
Hardness 6.5-7.5 on the Mohs scale, orange to reddish-brown color, vitreous luster, isometric crystal system with no cleavage, and specific gravity around 4.12.
Formation & geological history
Forms in granitic pegmatites, metamorphic rocks, and occasionally in carbonatites through high-temperature regional metamorphism or magmatic processes.
Uses & applications
Prized as a vibrant gemstone for high-end jewelry and collected by mineral enthusiasts.
Geological facts
Spessartine is often called the mandarin garnet due to its bright, fiery orange coloration found in premier African specimens.
Field identification & locations
Identify by its distinctive orange hue, high refractive index, and conchoidal fracture. Found in Brazil, Madagascar, Namibia, and the USA.
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