Stromatolitic Dolomite SD154 polished slab It can be somewhat crumbly

It can be somewhat crumbly when cutting

With a cut base to stand up as a display piece

Dimensions approximately 150mm x 110mm x 10mm thick

20 - 25 mm across

It was collected many years ago from a large open cut gold mine at Reedy's near Cue in Western Australia

Stromatolitic Dolomite SD154 polished slab It can be somewhat crumblySD154 Stromatolitic Dolomite rough rock, cut and polished on one side. Sections consist of a chaotic mixture of dolomite and or stromatolite fragments set in a matrix of mudstone and or coarsely crystalline dolomite . The pink and red colouration can be attributed to the presence of finely disseminated iron oxides . It often contain layers and nodules of red chert. From the Irregully Formation, Western Australia. Dimensions approximately 170mm x 45mm