sedimentary
Mokaite Jasper
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, vibrant multicolored bands of red, yellow, and purple, waxy to vitreous luster, and microcrystalline structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, vibrant multicolored bands of red, yellow, and purple, waxy to vitreous luster, and microcrystalline structure.
Formation & geological history
Formed from the weathering of radiolarian chert in shallow marine environments in Western Australia during the Cretaceous period.
Uses & applications
Used primarily in lapidary arts, ornamental carvings, jewelry making, and as a collectible specimen.
Geological facts
Mokaite is an Australian Aboriginal term referring to Mooka Creek, the only place in the world where this specific stone is mined.
Field identification & locations
Identify by its distinctive multicolored earthy tones and smooth conchoidal fracture. Found exclusively in the Kennedy Ranges of Western Australia.
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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
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Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Sandstone
Arenite
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Shale
Shale (clastic sedimentary rock)
sedimentary
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
sedimentary