sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, deep brown color, waxy to dull luster, and conchoidal fracture without visible crystal structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, deep brown color, waxy to dull luster, and conchoidal fracture without visible crystal structure.
Formation & geological history
Formed through the precipitation of silica-rich fluids in sedimentary basins or volcanic environments, often dating back millions of years.
Uses & applications
Used extensively 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 components.
Field identification & locations
Identified by its opaque, smooth, dark brown appearance and resistance to steel scratching; commonly found in riverbeds and mountainous regions globally, including Southeast Asia.
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