sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, opaque luster, massive or microgranular crystal structure, conchoidal fracture, and colors ranging from red to yellow and brown.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, opaque luster, massive or microgranular crystal structure, conchoidal fracture, and colors ranging from red to yellow and brown.
Formation & geological history
Formed through the silification of sedimentary or volcanic rocks, where silica-rich fluids replace original minerals in ancient marine or terrestrial environments.
Uses & applications
Used widely in ornamental carvings, jewelry, lapidary art, and sought after by mineral collectors.
Geological facts
Jasper has been used since ancient times for talismans, seals, and weaponry like arrowheads due to its toughness and ability to hold a sharp edge.
Field identification & locations
Identify by its waxy luster, opaque nature, and conchoidal fracture; commonly found in riverbeds, hydrothermal veins, and ancient sedimentary deposits worldwide.
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