sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, typically opaque with a vitreous to dull luster, and exhibits a conchoidal fracture without distinct crystal cleavage.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, typically opaque with a vitreous to dull luster, and exhibits a conchoidal fracture without distinct crystal cleavage.
Formation & geological history
Formed via the precipitation of silica-rich fluids within sedimentary environments or volcanic fissures, often during ancient hydrothermal activity.
Uses & applications
Widely utilized for ornamental carvings, cabochons in jewelry, polished decorative spheres, and as a popular specimen for lapidary collectors.
Geological facts
Jasper has been utilized by ancient civilizations since the 4th millennium BC for seals, talismans, and primitive tools due to its durability.
Field identification & locations
Identified easily by its opaque nature, waxy luster, and wide array of earthy colors; commonly found in riverbeds and mountainous regions worldwide.
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