Stromatolitic Dolomite SD159 purple lepidolite From near Nevada Creek

From near Nevada Creek

OJ125  A slab

Fossil stromatolite

Measures approximately 225mm x 120mm and  10mm thick

From north of Newman in the Pilbara region of Western Australia

Stromatolitic Dolomite SD159 purple lepidolite From near Nevada CreekSD159 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