Polished Tiger Iron slab TI318 aquamarine Dimensions at widest points approximately

Dimensions at widest points approximately 170 mm x 110 mm x 100 mm thick

Dimensions at widest points approximately 155 mm x 110 mm x 55 mm thick

Approximate weight of each piece is between 53 and 125 grams

Unusual colouration caused by natural iron oxide weathering

Polished Tiger Iron slab TI318 aquamarine Dimensions at widest points approximatelyTI318 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 150 mm x 100 mm x 6. 4 mm thick. Weighs: 243 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.