sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, opaque yellow-brown color, waxy luster, and conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, opaque yellow-brown color, waxy luster, and conchoidal fracture.
Formation & geological history
Formed from silica-rich solutions precipitating in sedimentary environments or volcanic ash beds over millions of years.
Uses & applications
Used primarily in lapidary arts, ornamental carvings, and affordable gemstone jewelry.
Geological facts
Jasper has been used since ancient times for talismans, seals, and decorative weaponry.
Field identification & locations
Identified by its opaque appearance, hardness that scratches glass, and smooth tumbled texture found in riverbeds.
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