sedimentary
Picture Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, earthy brown and tan colors with landscape-like banding, waxy to vitreous luster, and cryptocrystalline structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, earthy brown and tan colors with landscape-like banding, waxy to vitreous luster, and cryptocrystalline structure.
Formation & geological history
Formed by silica-rich water infiltrating sediment or volcanic ash, depositing layers within cavities over millions of years.
Uses & applications
Widely used in ornamental carvings, polished cabochons, and jewelry making.
Geological facts
The distinct patterns are caused by trapped iron and mineral oxides diffusing through the porous rock during formation.
Field identification & locations
Easily identified by its distinctive banded patterns resembling landscapes, typically found in arid regions like desert deposits.
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