Polished Chinese Writing Stone CW129 magneprase Dimensions at widest points approximately

Dimensions at widest points approximately 85 mm x 70 mm x 55 mm thick

All reasonably uniform in size (roughly 20 -30 mm diameter}

Dimensions at widest points approximately 260 mm x 90 mm x 85 mm thick

Approximate dimensions at widest points 150 mm long  x 100 mm  x 40 mm thick

Weighs 689 grams

Polished Chinese Writing Stone CW129 magneprase Dimensions at widest points approximatelyCW129 Chinese Writing Stone rough rock, cut and polished on one side with a natural rough back. (Porphyritic basalt) Dimensions at widest points approx. 220 mm x 130 mm x 60 mm thick. Weight is 3,425 grams. From the "Mount Roe Basalt" near Whim Creek, Western Australia.