Stromatolitic Dolomite SD157 rock block 170 mm x 100 mm

170 mm x 100 mm x 9 mm

It weighs 284 grams

It weighs 230 grams

215 mm x 140 mm x 9 mm thick

IRR 125    Fossil stromatolite slab

Stromatolitic Dolomite SD157 rock block 170 mm x 100 mmSD157 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 130mm x 100mm x 7mm thick