Polished Tiger Iron slab TI397 #googleimages Dimensions at widest points approximately

Dimensions at widest points approximately 160 mm x 70 mm x 15 mm thick

Weighs 505 grams

The stone from this deposit was last mined more than 30 years ago

Dimensions at widest points approximately 125 mm x 80 mm x 14 mm thick

The stromatolite occurs as small digitate columns which are finely laminated

Polished Tiger Iron slab TI397 #googleimages Dimensions at widest points approximatelyTI397 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 200 mm x 140 mm x 7 mm thick. Weighs: 451 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.