sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, earthy to vitreous luster, opaque appearance, and a conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, earthy to vitreous luster, opaque appearance, and a conchoidal fracture.
Formation & geological history
Formed from silica-rich solutions precipitating in sedimentary environments or hydrothermal veins, often over millions of years.
Uses & applications
Used primarily for ornamental carvings, polished cabochons, decorative spheres, and lapidary collections.
Geological facts
Jasper has been used since ancient times to create seals, talismans, and intricate jewelry by various civilizations worldwide.
Field identification & locations
Identified by its opaque nature and lack of cleavage; commonly found in riverbeds, hydrothermal deposits, and sedimentary formations globally.
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