sedimentary

Mookite Jasper

Silicon Dioxide (Microcrystalline Quartz, SiO2)

Hardness of 6.5 to 7 on the Mohs scale, with vibrant yellow, red, and maroon banding, a waxy to vitreous luster, and a cryptocrystalline structure.

Identified November 14, 2026More sedimentary →

Get a report just like this from any photo, free.

Physical properties

Hardness of 6.5 to 7 on the Mohs scale, with vibrant yellow, red, and maroon banding, a waxy to vitreous luster, and a cryptocrystalline structure.

Formed from the weathering of radiolarian skeletons in ancient marine environments, primarily found in Western Australia.

Widely used in jewelry making, ornamental carvings, and by crystal collectors for its metaphysical properties.

Mookite is an Australian porcelainite that often exhibits a rich mustard yellow and deep red color palette due to iron oxide staining.

Identify in the field by its distinct multicolored banding and high polish capability. Commonly sourced from the Kennedy Ranges in Western Australia.

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

Sandstone or Siltstone

Arenite (if sandstone)

Fossiliferous Sedimentary Rock

Sedimentary limestone with invertebrate fossil imprint

Shale

Fissile Sedimentary Rock

Sandstone

Arenite

Shale

Clastic sedimentary rock