sedimentary
Jasper
Microcrystalline quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque yellow-brown color, waxy luster, and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque yellow-brown color, waxy luster, and conchoidal fracture.
Formation & geological history
Formed through the silification of sedimentary deposits or volcanic ash, occurring globally in ancient marine and hydrothermal environments.
Uses & applications
Commonly used for ornamental carvings, polished cabochons in jewelry, and decorative landscaping stones.
Geological facts
Jasper has been utilized since ancient times for talismans, seals, and weaponry components across various civilizations.
Field identification & locations
Easily identified by its opaque nature, smooth waxy polish, and earthy colors; frequently found in riverbeds and gravel deposits.
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