Stromatolitic Dolomite SD159 purple lepidolite Carnegia wongawolensis

Carnegia wongawolensis

Dimensions at widest points approximately 70 mm x 70 mm x 30 mm thick

Weighs 316grams

Brecciated Mookaite slab

Dimensions approximately 160 mm x 95 mm x 12 mm thick

Stromatolitic Dolomite SD159 purple lepidolite Carnegia wongawolensisSD159 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