sedimentary
Jasper
Microcrystalline quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, red to brown color, vitreous to dull luster, and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, red to brown color, vitreous to dull luster, and conchoidal fracture.
Formation & geological history
Formed through the silification of sedimentary deposits or volcanic ash, occurring worldwide in ancient marine environments.
Uses & applications
Used extensively for ornamental carvings, cabochons, jewelry, and as a durable decorative aggregate.
Geological facts
Jasper has been utilized since ancient times for talismans, seals, and weaponry components by various civilizations.
Field identification & locations
Identify by its opaque nature, waxy luster, and resistance to scratching by steel; commonly found in riverbeds and mountainous regions.
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