Pair of polished Orbicular Granite. OG211 crystoprase Chinese Writing Stone is a

Chinese Writing Stone is a porphyritic basalt (porphyry) with groups and rosettes of plagioclase feldspar

OJ129  A slab

Dimensions at widest points approximately 170 mm x 100 mm  x 10 mm thick

Dimensions approximately 115 mm x 55 mm x 30 mm deep

Total weight  4

Pair of polished Orbicular Granite. OG211 crystoprase Chinese Writing Stone is aOG211 A matching pair of polished Orbicular Granite halves with natural rough backs. (A single nodule cut in half). Dimensions at widest points of each half approx. 85 mm x 90 mm x 30 35 mm thick. Weight of both is 866 grams. From Boogardie Station near Mount Magnet, Western Australia.