Jelly Bean Jasper polished slab JBJ354 purple chalcedony Dimensions at widest points approximately

Dimensions at widest points approximately 220 mm x 80  mm x 11 mm thick

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

160 mm x 55 mm  x 8 mm

100 mm x 100 mm x 40 mm

It weighs 286 grams

Jelly Bean Jasper polished slab JBJ354 purple chalcedony Dimensions at widest points approximatelyJBJ354 Jelly Bean Jasper or Red Jasper Conglomerate in Hematite rich matrix. A slab, polished on one side . Dimensions at widest points approximately 200 mm x 150 mm x 11 mm thick. Weighs: 814 grams It occurs in a geological unit called the "Mt. McGrath Formation" which has an age of close to 2 billion years. Nearest town is Paraburdoo in the Pilbara region of Western Australia.