sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque luster, earthy to waxy appearance, and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque luster, earthy to waxy appearance, and conchoidal fracture.
Formation & geological history
Formed through the accumulation of silica-rich sediments or volcanic ash, often altered by hydrothermal fluids over millions of years.
Uses & applications
Used primarily in ornamental carvings, cabochons, jewelry, and as a collectible lapidary material.
Geological facts
Jasper has been used since ancient times for seals, talismans, and decorative weaponry due to its durability and rich colors.
Field identification & locations
Identified by its waxy luster, opaque nature, and smooth conchoidal breakage; commonly found in riverbeds and mountainous regions worldwide.
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