sedimentary
Jasper
Silicon dioxide (Microcrystalline quartz, SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, opaque luster, featuring reddish-brown and white coloration with conchoidal fracture and trigonal crystal system.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, opaque luster, featuring reddish-brown and white coloration with conchoidal fracture and trigonal crystal system.
Formation & geological history
Formed through the silification of sedimentary or volcanic deposits, with mineral-rich silica solutions replacing original organic or rock material over millions of years.
Uses & applications
Widely utilized in lapidary work for making cabochons, beads, ornamental carvings, and jewelry.
Geological facts
Ancient civilizations used jasper for talismans and seal amulets due to its durability and rich earthy colors.
Field identification & locations
Identified by its opaque nature and lack of cleavage; commonly found in riverbeds and mountainous regions worldwide.
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