sedimentary
Jasper
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, red and black coloration, waxy luster, and microcrystalline structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, red and black coloration, waxy luster, and microcrystalline structure.
Formation & geological history
Formed via the precipitation of silica-rich fluids in sedimentary basins or volcanic environments over millions of years.
Uses & applications
Used primarily for ornamental carvings, polished cabochons, and gemstone jewelry.
Geological facts
Jasper has been used since ancient times for talismans, seals, and weaponry components due to its toughness and fracture resistance.
Field identification & locations
Identified by its opaque appearance, conchoidal fracture, and smooth tumbled texture, commonly found in stream beds and coastal gravels.
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Sandstone or Siltstone
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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