mineral

Quartz with Spessartine Garnet and Biotite

SiO2 (Quartz) with Mn3Al2(SiO4)3 (Spessartine)

AI-generated identification · may be incorrect

Hardness of 7 for quartz and 6.5 to 7.5 for spessartine on the Mohs scale. Color is white/translucent quartz matrix with vibrant orange-red spessartine garnet crystals and dark biotite inclusions. Luster is vitreous to resinous. Crystal structure is trigonal (quartz) and isometric (garnet).…

Identified July 29, 2026More mineral →

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Physical properties

Formation & geological history

Formed in pegmatites or metamorphic hydrothermal environments where silica-rich fluids and manganese-rich solutions crystallize under high temperature and pressure conditions, often dating from Precambrian to Cenozoic eras depending on the specific geological location.

Uses & applications

Used primarily as a mineral specimen for collectors, in lapidary arts, and occasionally for metaphysical purposes or educational displays.

Geological facts

Spessartine is the manganese-aluminum endmember of the garnet group. The name comes from the Spessart region in Germany, though fine specimens are found worldwide in pegmatite pockets.

Field identification & locations

Can be identified by the translucent to milky white quartz host rock contrasted sharply with bright orange-red garnet crystal grains and dark mica flakes. Found in pegmatite-rich regions globally, especially in areas with granitic intrusions.