Polished Tiger Iron slab TI357

TI357  Tiger Iron slab, polished on one side.

Dimensions at widest points approximately 155 mm  x 115 mm x 8.5 mm thick.

Weighs:  318 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.