Stromatolitic Dolomite SD157 dendrite Weighs 142 grams

Weighs 142 grams

with both halves polished on one side

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Dimensions approximately 180mm x 130mm x approx  9mm thick

These small branching columnar stromatolites are from the “Mount Leake Sandstone”

Stromatolitic Dolomite SD157 dendrite Weighs 142 gramsSD157 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