sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque yellow to orange-brown color, waxy luster, and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque yellow to orange-brown color, waxy luster, and conchoidal fracture.
Formation & geological history
Formed through the silification of sediment or volcanic ash, typically in silica-rich aqueous environments over millions of years.
Uses & applications
Widely used for ornamental carvings, cabochons in jewelry, and as a popular specimen for mineral collectors.
Geological facts
Jasper has been used since ancient times to create seals, talismans, and decorative weaponry due to its durability and rich color.
Field identification & locations
Identify in the field by its distinct waxy appearance, smooth opaque fracture surfaces, and inability to be scratched by steel.
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