Stromatolitic Dolomite SD154 polished slab This material is VERY rare

This material is VERY rare

CLA227   A slab

Dimensions at widest points approximately 175 mm x 100 mm x 6 mm thick

It can be somewhat crumbly when cutting

160 mm x 140 mm x 10 mm thick at widest points

Stromatolitic Dolomite SD154 polished slab This material is VERY rareSD154 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