sedimentary
Jasper
Microcrystalline Quartz (SiO2)
Hardness of 6.5-7 on the Mohs scale, opaque luster, multicolored often featuring red, brown, green, or yellow bands, conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, opaque luster, multicolored often featuring red, brown, green, or yellow bands, conchoidal fracture.
Formation & geological history
Formed from silica-rich solutions in sedimentary or volcanic environments, often through the precipitation of silica in spaces of rocks.
Uses & applications
Used for ornamental objects, cabochons, jewelry, and stone carving.
Geological facts
Jasper has been used since ancient times for talismans, seals, and jewelry, referenced in many ancient cultures for its perceived protective properties.
Field identification & locations
Found worldwide in riverbeds and mountainous regions; identified by its opaque nature and rich colors.
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