Polished Tiger Iron slab TI372 stripey All reasonably uniform in size

All reasonably uniform in size (roughly 20 - 30 mm diameter}

Dimensions at widest point approximately 135 mm x 75 mm x 8

Weighs 239 grams

140 mm x 90 mm x 8 mm thick

Weight is 372 grams

Polished Tiger Iron slab TI372 stripey All reasonably uniform in sizeTI372 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 105 mm x 90 mm x 10. 5 mm thick. Weighs: 285 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.