Polished Tiger Iron slab TI283 polished noreena Pilbaria perplexa from the Proterozoic

Pilbaria perplexa from the Proterozoic "Duck Creek Dolomite"

Dimensions at widest points approximately 125 mm x 35 mm x 40 mm thick

Weight is 700 grams

Dimensions approximately 100 mm x 80 mm x 25 mm thick

Weighs 348 grams

Polished Tiger Iron slab TI283 polished noreena Pilbaria perplexa from the ProterozoicTI283 Tiger Iron slab, polished on one side . Dimensions at widest points approximately 140 mm x 100 mm wide x 9 mm thick. Weighs: 337 grams From the Cleaverville Formation, Ord Ranges near Port Hedland, Western Australia. Age is over 3 billion years. , Tiger iron is a banded iron formation (BIF) or jaspilite that has alternating layers of black and brown hematite magnetite, red jasper and chatoyant golden tiger eye.