Polished Tiger Iron TI265 prehnite Face is approximately 105mm x

Face is approximately 105mm x 50mm and  7mm thick

From the Strelley Pool Formation in the Pilbara region of Western Australia

Dimensions at widest points approximately 150 mm x 85 mm x 45 mm thick

Dimensions at widest points approximately 100 mm x 100 mm x 65 mm thick

Weight is 581 grams

Polished Tiger Iron TI265 prehnite Face is approximately 105mm xTI265 Tiger Iron rough rock, cut and polished on one side with a natural rough back. Dimensions at widest points approximately 200 mm x 100 mm wide x 80 mm thick. Weighs: 2,765 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