sedimentary
Red Jasper
Microcrystalline quartz, SiO2
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, opaque brick-red color, waxy to dull luster, and conchoidal fracture with a microgranular crystal structure.
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Physical properties
Hardness of 7 on the Mohs scale, opaque brick-red color, waxy to dull luster, and conchoidal fracture with a microgranular crystal structure.
Formation & geological history
Formed through the hydrothermal deposition of silica-rich fluids or accumulation of radiolarian ooze, often in marine environments during the Precambrian and Paleozoic eras.
Uses & applications
Widely used for ornamental carvings, cabochons in jewelry, tumbling, and as a popular specimen for mineral collectors.
Geological facts
Red jasper derives its distinct opaque red color from iron oxide inclusions within the microcrystalline quartz matrix.
Field identification & locations
Identified by its deep red coloration, high hardness scratching glass, and lack of visible crystal faces; commonly found in riverbeds, hydrothermal veins, and sedimentary deposits worldwide.
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