sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque luster, various earthy colors including red, brown, and green, with no true cleavage and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque luster, various earthy colors including red, brown, and green, with no true cleavage and conchoidal fracture.
Formation & geological history
Formed through the precipitation of silica-rich fluids in sedimentary or volcanic environments, often dating back millions of years.
Uses & applications
Widely used for ornamental carvings, polished cabochons in jewelry, and as a popular specimen for mineral collectors.
Geological facts
Jasper has been utilized by ancient civilizations since antiquity for tools, seals, and decorative amulets due to its durability and rich coloration.
Field identification & locations
Easily identified in the field by its waxy luster, conchoidal fracture, and opaque multicolor patterns; commonly found in riverbeds and mountainous regions worldwide.
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