sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, vitreous to dull luster, conchoidal fracture, and opaque appearance with varied colors due to mineral impurities.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, vitreous to dull luster, conchoidal fracture, and opaque appearance with varied colors due to mineral impurities.
Formation & geological history
Formed through the silification of sedimentary or volcanic rocks, often via silica-rich fluids precipitating in marine environments or hydrothermal veins.
Uses & applications
Used primarily in ornamental carvings, cabochons, jewelry, and as a durable decorative stone.
Geological facts
Jasper has been utilized since ancient times for talismans, seals, and weaponry components like arrowheads due to its toughness.
Field identification & locations
Identified easily by its waxy luster, conchoidal breakage, and inability to be scratched by a steel knife. Found globally in riverbeds and mountainous regions.
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