Prase rough PRR123 atlantisite Dimensions at widest points approximately

Dimensions at widest points approximately 90 mm x 65 mm x 50 mm thick

Approximate dimensions at widest points 90 mm long  x 65 mm  x 45 mm thick

Dimensions at widest points approximately 180 mm x 150 mm and 7

Killaloe Opal occurs at a location near Norseman in the Eastern Goldfields of Western Australia

It weighs 235 grams

Prase rough PRR123 atlantisite Dimensions at widest points approximatelyPRR 123. Dimensions at widest points approximately 160 mm x 95 mm x 80 mm thick. Weighs 1,602 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.