igneous
Dalmatian Jasper
Feldspar-quartz microgranite
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, cream to beige base color with characteristic black or brown spots of tourmaline or arfvedsonite, and vitreous to dull luster.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, cream to beige base color with characteristic black or brown spots of tourmaline or arfvedsonite, and vitreous to dull luster.
Formation & geological history
Formed from the cooling and solidification of molten magma beneath the Earth's crust, typically classified as an igneous microgranite.
Uses & applications
Widely used in ornamental carvings, gemstone beads, and metaphysical jewelry.
Geological facts
Despite its common trade name containing jasper, it is scientifically an igneous rock rather than a true microcrystalline quartz.
Field identification & locations
Easily identified by its distinctive spotted coat resembling a Dalmatian dog; primarily sourced from Chihuahua, Mexico.
