Prase rough PRR127 jelly bean jasper BJ134 Polished "Black Jade" A

BJ134  Polished "Black Jade" A trade name for metamorphosed magnesian tholeiite (basalt)

4 mm thick

Weight 420 grams

Lovely specimen

Dimensions at widest points approximately 80 mm x 30 mm x 15 mm thick

Prase rough PRR127 jelly bean jasper BJ134 Polished "Black Jade" APRR 127. Dimensions at widest points approximately 130 mm x 90 mm x 70 mm thick. Weighs 1,458 grams. Prase is a chrome rich chert. Also called Dragon Stone. The green colour usually derives from minor mineral content, most commonly the green chromiferous muscovite mica, fuchsite. There are numerous Prase deposits in the Pilbara region of Western Australia.