Prase rough PRR115 purple Dimensions at widest points approximately

Dimensions at widest points approximately 120 mm x 60 mm x 30 mm thick

Dimensions at widest points approximately 70 mm x 60 mm x 60 mm thick

Dimensions at widest point approximately 135 mm x 75 mm x 8

Pollucite rough rock

PC121 Chalcedony slab

Prase rough PRR115 purple Dimensions at widest points approximatelyPRR 115. Dimensions at widest points approximately 110 mm x 110 mm x 45 mm thick. Weighs 806 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.