sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, opaque luster, various colors often featuring red or brown inclusions, and a cryptocrystalline structure with conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, opaque luster, various colors often featuring red or brown inclusions, and a cryptocrystalline structure with conchoidal fracture.
Formation & geological history
Formed via the precipitation of silica-rich fluids in sedimentary environments or hydrothermal veins, often dating back hundreds of millions of years.
Uses & applications
Commonly used for ornamental carvings, polished cabochons in jewelry, and geological specimen collecting.
Geological facts
Jasper has been utilized by ancient civilizations since the 4th millennium BC for talismans, seals, and weaponry.
Field identification & locations
Identified by its high hardness, smooth waxy polish, and opaque appearance; frequently found in riverbeds and ancient marine deposits worldwide.
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