sedimentary
Jasper
Silicon dioxide (Microcrystalline quartz, SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, typically opaque with various earthy colors, waxy to dull 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 to 7 on the Mohs scale, typically opaque with various earthy colors, waxy to dull luster, and conchoidal fracture.
Formation & geological history
Formed by the precipitation of silica from water in marine or hydrothermal environments, often rich in iron oxides.
Uses & applications
Used primarily for ornamental carvings, jewelry, lapidary art, and geological specimen collecting.
Geological facts
Jasper has been used since ancient times for talismans, seals, and weaponry due to its durability and rich colors.
Field identification & locations
Identified easily by its opaque nature, lack of cleavage, waxy luster, and wide array of earthy red, brown, or yellow hues found in riverbeds worldwide.
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
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Shale
Fissile Sedimentary Rock
sedimentary
Sandstone
Arenite
sedimentary
Shale
Clastic sedimentary rock
sedimentary