Stromatolitic Dolomite SD159 petrified wood Dimensions at widest points approximately

Dimensions at widest points approximately 160 mm x 75 mm x 12 mm thick

Huge museum quality specimen

Peanut Wood slab polished on one side

SD155 Stromatolitic Dolomite rough rock

Each polished face approximately 95mm x 30mm x 30 mm thick

Stromatolitic Dolomite SD159 petrified wood Dimensions at widest points approximatelySD159 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 165mm x 105mm x 8mm thick