sedimentary
Red Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectMohs hardness of 6.5 to 7, opaque red to reddish-brown color with vitreous luster, and a trigonal crystal system. It exhibits conchoidal fracture and lacks cleavage.
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Physical properties
Mohs hardness of 6.5 to 7, opaque red to reddish-brown color with vitreous luster, and a trigonal crystal system. It exhibits conchoidal fracture and lacks cleavage.
Formation & geological history
Formed through the precipitation of silica-rich fluids in marine or hydrothermal environments, often accumulating in sedimentary beds over millions of years.
Uses & applications
Widely used in ornamental carvings, cabochons, beaded jewelry, and lapidary art due to its durability and rich color.
Geological facts
Ancient civilizations valued jasper as a powerful talisman for protection and physical strength. The distinct red color is caused by iron oxide inclusions within the quartz matrix.
Field identification & locations
Easily identified by its deep red hue, opaque nature, and hard, smooth polished finish. Commonly sourced from India, Brazil, Madagascar, and the United States.
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