sedimentary
Polished Mookaite Jasper
Silicon dioxide with impurities (Chalcedony / Variegated Jasper)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, vibrant multicolor banding including red, yellow, and white, vitreous to dull luster, and microcrystalline structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, vibrant multicolor banding including red, yellow, and white, vitreous to dull luster, and microcrystalline structure.
Formation & geological history
Formed from the accumulation of radiolaria skeletons and silica precipitation in marine environments in Western Australia during the Cretaceous period.
Uses & applications
Widely used in lapidary arts for cabochons, jewelry making, decorative carvings, and mineral collecting.
Geological facts
Mookaite is found exclusively along the Kennedy Ranges near Mooka Creek in Western Australia. It is technically a radiolarite rather than a true jasper.
Field identification & locations
Easily identified by its distinct earthy red and yellow color combinations and smooth waxy polish. Sourced primarily from Western Australia.
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