Stromatolitic Dolomite SD156 stand ups Extremely rare mineral specimen or

Extremely rare mineral specimen or suitable for cutting into high end cabochons

Highly polished on both sides

Yet to be formally identified but possibly Paniscollenia

Dimensions approximately 175 mm x 160 mm x 5 mm thick

Stromatolitic Dolomite SD156 stand ups Extremely rare mineral specimen orSD156 Stromatolitic Dolomite slab, 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 100mm x 7mm thick