sedimentary
Green Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, deep green color, waxy to dull luster, cryptocrystalline structure, conchoidal fracture.
Identified More sedimentary →
Explore Green 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, deep green color, waxy to dull luster, cryptocrystalline structure, conchoidal fracture.
Formation & geological history
Formed via the precipitation of silica-rich fluids in sedimentary environments or hydrothermal veins, often over millions of years.
Uses & applications
Used primarily in lapidary arts, ornamental carvings, cabochons, and as a collectible gemstone.
Geological facts
Jasper has been used since ancient times for talismans and seals. The green variety often gets its color from iron impurities or silicate minerals like chlorite.
Field identification & locations
Identify by its hardness, lack of cleavage, waxy luster, and opaque green coloration. Common in riverbeds and mountainous regions 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
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