sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque luster, various earth tones of brown, red, or green, and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque luster, various earth tones of brown, red, or green, and conchoidal fracture.
Formation & geological history
Formed through the silification of sedimentary or volcanic rocks where silica-rich fluids replace original material over millions of years.
Uses & applications
Commonly used for ornamental carvings, cabochons in jewelry, and as a decorative stone for lapidary work.
Geological facts
Jasper has been utilized by ancient civilizations since antiquity for tools, seals, and talismans due to its durability and rich coloration.
Field identification & locations
Identified easily by its lack of cleavage, waxy luster, and opaque earthy colors, commonly found in stream beds and ancient depositional environments.
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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