Prase rough PRR109 mookatite Mostly plain petrified wood but

Mostly plain petrified wood but one Teredo bore hole is visible

Highly translucent and grading into light green chrysoprase

The subtle lime green colouration is caused by the presence of nickel mineralisation

Displaying purple lepidolite associated with white feldspar and quartz

Dimensions approximately 70 mm x 60 mm x 30 mm deep

Prase rough PRR109 mookatite Mostly plain petrified wood butPRR 109. Dimensions at widest points approximately 100 mm x 95 mm x 70 mm thick. Weighs 1,031grams. 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.