sedimentary
Jasper
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque luster, multicolored with earthy tones, conchoidal fracture.
Identified More sedimentary →
Explore Jasper in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque luster, multicolored with earthy tones, conchoidal fracture.
Formation & geological history
Forms from silica-rich fluids precipitating in sedimentary basins or volcanic voids, often during hydrothermal activity.
Uses & applications
Used primarily for ornamental carvings, jewelry, and polished decorative specimens.
Geological facts
Jasper has been utilized by ancient civilizations for tools and talismans since the fourth millennium BCE.
Field identification & locations
Identified by its waxy luster and opaque, varied color patterns; found worldwide in riverbeds and mountainous regions.
More like this
Other sedimentary specimens
Fossil-bearing concretion, possibly containing a fossil shell or other organic inclusion
Calcareous concretion; exact fossil and host-rock composition are not identifiable from the image
fossil
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Sandstone
Arenite
sedimentary
Shale
Shale (clastic sedimentary rock)
sedimentary
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
sedimentary