Polished Chinese Writing Stone slab CW131 ashburton agate DO197 Wanong Dendritic Opal slab

DO197  Wanong Dendritic Opal slab polished on one side

Dimensions at widest points approximately 90 mm x 70 mm x 11 mm thick

Dimensions approximately 130 mm x 70 mm x 45 mm deep

Dimensions approximately 95 mm x 70 mm x 8 mm thick

Weighs:  588 grams

Polished Chinese Writing Stone slab CW131 ashburton agate DO197 Wanong Dendritic Opal slabCW131 Chinese Writing Stone slab, polished on one side. (Porphyritic basalt) Dimensions at widest points approx. 215 mm x 130 mm x 12. 5 mm thick. Weight is 662 grams. Chinese Writing Stone is a porphyritic basalt (porphyry) with groups and rosettes of plagioclase feldspar. From the "Mount Roe Basalt" in the West Pilbara region of Western Australia near Whim Creek.