Polished Convoluted Jasper slab CJ101 atlantisite DO173 Dendritic Opal slab

DO173  Dendritic Opal slab

They occur in the Maddina Formation in the Pilbara region of Western Australia

Dimensions approximately 160 mm x 100 mm x 8 mm thick

Dimensions at widest points approximately 110 mm x 100 mm x 80 mm thick

Polished Convoluted Jasper slab CJ101 atlantisite DO173 Dendritic Opal slabCJ101. Convoluted Jasper slab, polished on one side. Dimensions at widest points approximately 210 mm x 165 mm x 11 mm thick Weighs 1,066 grams. Convoluted jasper comes from Turee Creek Station in the Pilbara region of Western Australia. The location is about 160 km west of the iron ore mining town of Newman. It occurs as outcrops and seams of jasper in a banded iron formation called "The Weeli Wooli Formation". The age of this formation is around