Polished Chrysoprase CH468 black jasper Coarse and fine gold is

Coarse and fine gold is seemingly related to higher concentrations of pyrite within a 200 metre sequence of poorly-stratified

Dimensions at widest points approximately 115 mm x 90 mm x 9 mm thick

CH438  Chrysoprase  slab polished  on one side

grinding or polishing as the matrix holding the pisolites (small round pebbles) is in many cases quite soft

190 mm x 190 mm x 70 mm

Polished Chrysoprase CH468 black jasper Coarse and fine gold isCH468 Chrysoprase rough rock, cut and polished on one side with a rough, natural back. Dimensions at widest points approximately 160 mm x 130 mm x 30 mm thick . Weighs 645 grams From Yerilla, north of Kalgoorlie, Western Australia.