sedimentary
Jasper
Microcrystalline quartz (SiO2)
AI-generated identification · may be incorrectHardness 7 on the Mohs scale, opaque yellow-brown color, waxy luster, trigonal crystal system, conchoidal fracture.
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Physical properties
Hardness 7 on the Mohs scale, opaque yellow-brown color, waxy luster, trigonal crystal system, conchoidal fracture.
Formation & geological history
Formed via silica-rich precipitation in marine environments or hydrothermal veins during various geological eras.
Uses & applications
Used primarily for ornamental carvings, polished cabochons in jewelry, and geological specimen collecting.
Geological facts
Jasper has been used since ancient times for talismans, seals, and decorative tools across numerous civilizations.
Field identification & locations
Identify by its opaque earth tones, smooth waxy texture, and lack of cleavage. Commonly found in riverbeds and silicious rock formations globally.
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