sedimentary
Red Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, red to reddish-brown color due to iron inclusions, waxy luster, and conchoidal fracture.
Identified More sedimentary →
Explore Red 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, red to reddish-brown color due to iron inclusions, waxy luster, and conchoidal fracture.
Formation & geological history
Formed via the precipitation of silica-rich fluids in sedimentary or hydrothermal environments, often over millions of years.
Uses & applications
Commonly used for ornamental carvings, polished stones, cabochons in jewelry, and geological specimen collecting.
Geological facts
Jasper has been used since ancient times for talismans, seals, and weaponry components by various civilizations worldwide.
Field identification & locations
Identified by its opaque red color and hard, smooth conchoidal breakage. Found globally in riverbeds, sedimentary deposits, and hydrothermal veins.
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