Prase rough PRR120 stitchtite in serpentine IRR114 Fossil stromatolite slab polished

IRR114  Fossil stromatolite slab polished on one side

The stromatolite occurs as small digitate columns which are finely laminated

Dimensions at widest points approximately 180 mm x 170 mm x 50 mm thick

CH418  Chrysoprase  slab polished  on one side

Prase rough PRR120 stitchtite in serpentine IRR114 Fossil stromatolite slab polishedPRR 120. Dimensions at widest points approximately 120 mm x 85 mm x 40 mm thick. Weighs 606 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.