Prase rough PRR114 Chrome chalcedony Dimensions approximately 170mm x 110mm

Dimensions approximately 170mm x 110mm x 11mm thick

Prase rough rock

TIR143 Tiger Iron rough rock

Approximate dimensions at widest points 90 mm  x 50 mm  x 50 mm thick

Dimensions at widest points approximately 130 mm high x 60 mm wide x 35 mm thick

Prase rough PRR114 Chrome chalcedony Dimensions approximately 170mm x 110mmPRR 114. Dimensions at widest points approximately 130 mm x 95 mm x 70 mm thick. Weighs 1,492 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.