Polished Chrysoprase CH468 black jasper Dimensions at widest points approximately

Dimensions at widest points approximately 170 mm x 110 mm x 60 mm thick

The green colour usually derives from minor mineral content

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

Weighs 999 grams

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

Polished Chrysoprase CH468 black jasper Dimensions at widest points approximatelyCH468 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.