Polished Tiger Iron TI294 #brecciated Dimensions at widest point approximately

Dimensions at widest point approximately 115 mm x 120 mm x 60 mm

Dimensions at widest points approximately 110 mm x 80 mm x 50 mm thick

The green colouration is caused by traces of nickel and/or chromium

It weighs 288 grams

Annular rings with heart visible

Polished Tiger Iron TI294 #brecciated Dimensions at widest point approximatelyTI294 Tiger Iron rough rock, cut and polished on one side with a natural rough back. Dimensions at widest points approximately 95 mm x 25 mm wide x 30 mm thick. Weighs: 169 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.