TI1138 A slab of Australian Tiger Iron polished on one side.
At widest points, approximately 180 mm x 120 mm . This slab has been cut on a slight angle so it tapers from 6mm wide on one side to 2 mm thick on the other.
It weighs 213 grams.
From the Nimingarra Iron Formation, Ord Ranges near Port Hedland, Western Australia.