sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, opaque brown color, waxy luster, and 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 6.5-7 on the Mohs scale, opaque brown color, waxy luster, and conchoidal fracture.
Formation & geological history
Formed through the silification of sedimentary deposits or volcanic ash, often in aqueous environments.
Uses & applications
Used primarily for ornamental carvings, cabochons, jewelry, and lapidary art.
Geological facts
Jasper has been used since ancient times for seals, talismans, and decorative weaponry across various civilizations.
Field identification & locations
Easily identified by its opaque nature, smooth waxy polish, and earthy brown tones found 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