sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, opaque luster, various earth tones like brown, red, or yellow, and conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, opaque luster, various earth tones like brown, red, or yellow, and conchoidal fracture.
Formation & geological history
Formed through the silification of sediment or volcanic ash, often precipitating from silica-rich hydrothermal solutions in ancient marine environments.
Uses & applications
Used extensively for ornamental carvings, cabochons, jewelry, and lapidary art.
Geological facts
Jasper has been utilized by ancient civilizations since the 4th millennium BC for talismans, seals, and primitive tools.
Field identification & locations
Identified by its waxy luster, lack of cleavage, and opaque earthy colors, commonly found in riverbeds and mountainous regions globally.
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Fossiliferous Sedimentary Rock
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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