sedimentary
Mokaite Jasper
Silicified radiolarian ooze (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale with a vitreous to dull luster. Displays a microcrystalline structure with vibrant multicolor bands of red, yellow, cream, and purple.
Identified More sedimentary →
Explore Mokaite 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 with a vitreous to dull luster. Displays a microcrystalline structure with vibrant multicolor bands of red, yellow, cream, and purple.
Formation & geological history
Formed from the accumulation of microscopic skeletal remains of radiolaria in shallow marine environments during the Cretaceous period.
Uses & applications
Primarily used for ornamental carvings, cabochons, polished display specimens, and gemstone jewelry.
Geological facts
Exclusively found in only one place in the world, within the Mekara Creek formation in the Kennedy Ranges of Western Australia.
Field identification & locations
Identify by its distinct multicolored patterns and smooth, conchoidal fracture. Collectors seek rough and polished slabs from Western Australia.
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