sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque luster, red and yellow banding, and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque luster, red and yellow banding, and conchoidal fracture.
Formation & geological history
Formed from silica-rich solutions precipitating in sedimentary environments or hydrothermal veins over millions of years.
Uses & applications
Used primarily in ornamental carvings, cabochons, jewelry, and as a collector's mineral specimen.
Geological facts
Jasper has been used since ancient times for amulets, seals, and tools due to its toughness and ability to take a high polish.
Field identification & locations
Easily identified by its waxy luster, lack of cleavage, and distinctive color banding; found worldwide in riverbeds and volcanic deposits.
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