Prase rough PRR122 Green Opal Dimensions approximately 85 mm x

Dimensions approximately 85 mm x 60 mm x 7 mm thick

200 mm x 65 mm  x 10 mm

NJT131  Tumble polished Noreena Jasper from Western Australia

Dimensions at widest points approximately 140 mm  x 80 mm wide x 8 mm thick

Pollucite rough rock

Prase rough PRR122 Green Opal Dimensions approximately 85 mm xPRR 122. Dimensions at widest points approximately 100 mm x 100 mm x 90 mm thick. Weighs 1,508 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.