sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness 6.5-7 on Mohs scale; displays reddish-brown to earthy colors; vitreous to dull luster; microcrystalline or cryptocrystalline structure with conchoidal fracture.
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Physical properties
Hardness 6.5-7 on Mohs scale; displays reddish-brown to earthy colors; vitreous to dull luster; microcrystalline or cryptocrystalline structure with conchoidal fracture.
Formation & geological history
Formed through the accumulation of silica-rich sediments or volcanic ash, often altered by hydrothermal fluids in ancient marine environments.
Uses & applications
Used primarily in ornamental carvings, decorative objects, jewelry, and lapidary arts.
Geological facts
Jasper has been utilized since ancient times for talismans, seals, and weaponry components due to its durability.
Field identification & locations
Identify by its waxy luster, opaque nature, and distinctive conchoidal breakage pattern. Common worldwide in ancient riverbeds and volcanic deposits.
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