
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on Mohs scale; displays opaque reddish-brown coloration with a waxy luster and no visible crystal structure.
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Physical properties
Hardness of 6.5-7 on Mohs scale; displays opaque reddish-brown coloration with a waxy luster and no visible crystal structure.
Formation & geological history
Formed through the precipitation of silica-rich fluids in sedimentary environments or hydrothermal veins over millions of years.
Uses & applications
Widely used for ornamental carvings, polished cabochons in jewelry, and as a popular specimen for mineral collectors.
Geological facts
Jasper has been utilized since ancient times for talismans, seals, and weaponry components across various civilizations.
Field identification & locations
Identified by its conchoidal fracture, opaque appearance, and lack of scratching from steel; commonly found in riverbeds and mountainous regions worldwide.
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Sandstone or Siltstone
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Shale
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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