mineral
Red Jasper
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectRed Jasper is an opaque, microcrystalline variety of quartz with a Mohs hardness of 6.5 to 7. It typically exhibits a dull to greasy luster and a fine-grained, massive crystal structure without visible cleavage.
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Physical properties
Red Jasper is an opaque, microcrystalline variety of quartz with a Mohs hardness of 6.5 to 7. It typically exhibits a dull to greasy luster and a fine-grained, massive crystal structure without visible cleavage.
Formation & geological history
It forms through the hydrothermal deposition of silica-rich fluids or the alteration of existing rocks in sedimentary and metamorphic environments, often in ancient marine basins or volcanic regions.
Uses & applications
Commonly used in lapidary work for making cabochons, beads, decorative carvings, and polished ornamental stones.
Geological facts
Its distinct brick-red color is caused by iron oxide inclusions within the microcrystalline quartz matrix. Throughout history, ancient civilizations revered it as a sacred stone of protection and physical endurance.
Field identification & locations
Identify it by its rich red color, conchoidal fracture, and inability to be scratched by a steel knife. It is found globally, with major deposits in India, Brazil, Russia, and the western United States.
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