sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, earthy to vitreous luster, opaque brown color with conchoidal fracture and no visible cleavage.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, earthy to vitreous luster, opaque brown color with conchoidal fracture and no visible cleavage.
Formation & geological history
Forms from the precipitation of silica-rich fluids in sedimentary basins or volcanic environments over millions of years.
Uses & applications
Used primarily in lapidary work for making cabochons, beads, decorative carvings, and ornamental stone objects.
Geological facts
Jasper has been utilized since ancient times for talismans, seals, and weaponry components across various civilizations.
Field identification & locations
Identify by its opaque nature, smooth waxy luster, and high hardness; commonly found in riverbeds and mountainous regions worldwide.
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