Stromatolitic Dolomite SD157 rock block IRR 125 Fossil stromatolite slab

IRR 125    Fossil stromatolite slab

170 mm x 100 mm x 9 mm

Weighs 230 grams

Dimensions at widest points approximately 95 mm x 40 mm x 20 mm thick

It weighs 628 grams

Stromatolitic Dolomite SD157 rock block IRR 125 Fossil stromatolite slabSD157 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