Polished Chinese Writing Stone slab CW131 ashburton agate Dimensions at widest point approximately

Dimensions at widest point approximately 170 mm x 120 mm x 9 mm

DO197  Wanong Dendritic Opal slab polished on one side

Dimensions approximately 95 mm x 70 mm x 8 mm thick

RH275  A slab

Polished Chinese Writing Stone slab CW131 ashburton agate Dimensions at widest point approximatelyCW131 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.