Prase rough PRR111 polished Noreena Jasper Dimensions at widest points approximately

Dimensions at widest points approximately 85 mm x 65 mm x 20 mm thick

Dimensions at widest points approximately 130 mm x 75 mm x 80 mm thick

It contains numerous occurrences of stromatolites and oncolites with an age of between 2

CC146  Chrome chalcedony slab

Prase rough PRR111 polished Noreena Jasper Dimensions at widest points approximatelyPRR 111. Dimensions at widest points approximately 125 mm x 120 mm x 80 mm thick. Weighs 1,615 grams. Prase is a chrome rich chert. 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.