Polished Tiger Iron slab TI290 rock blocks These interesting mineral oddities occur

These interesting mineral oddities occur in the banks of the Gascoyne River about 130 km east of Carnarvon

Dimensions at widest points approximately 110 mm x 85 mm x 9 mm thick

95 mm x 55 mm x 65 mm

Weighs 189 grams

It weighs 135 grams

Polished Tiger Iron slab TI290 rock blocks These interesting mineral oddities occurTI290 Tiger Iron slab, polished on one side . Dimensions at widest points approximately 120 mm x 90 mm wide x 8 mm thick. Weighs: 259 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.