sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, opaque luster, various earth tones of color, and conchoidal fracture with no cleavage.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, opaque luster, various earth tones of color, and conchoidal fracture with no cleavage.
Formation & geological history
Formed through the precipitation of silica-rich fluids in sedimentary or volcanic environments over millions of years.
Uses & applications
Commonly used for ornamental carvings, polished cabochons in jewelry, and as a collectible lapidary material.
Geological facts
Jasper has been utilized since ancient times for seals, talismans, and decorative weaponry.
Field identification & locations
Identified by its waxy luster, opaque appearance, and high hardness that scratches glass; found worldwide in riverbeds and mountainous regions.
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