sedimentary
Jasper
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque luster, microcrystalline quartz structure, and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque luster, microcrystalline quartz structure, and conchoidal fracture.
Formation & geological history
Formed in sedimentary or metamorphic environments through the silica-rich precipitation in marine or volcanic waters over millions of years.
Uses & applications
Used widely in ornamental carvings, cabochons, jewelry, and polished collector specimens.
Geological facts
Jasper has been used since ancient times for talismans, seals, and weaponry components across various ancient civilizations.
Field identification & locations
Identify by its waxy luster, opaque nature, and multicolored banded or spotted patterns; found globally in riverbeds and mountainous regions.
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Sedimentary limestone with invertebrate fossil imprint
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Sandstone or Siltstone
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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