Polished Tiger Iron slab TI268 chrysoprase Dimensions approximately 125 mm x

Dimensions approximately 125 mm x 110 mm x 80 mm thick

60 - 80 mm diameter and weigh between 190 - 420 grams each

70 million years (Cretaceous)

Weighs 360 grams

More correctly an iron-rich

Polished Tiger Iron slab TI268 chrysoprase Dimensions approximately 125 mm xTI268 Tiger Iron slab, cut and polished on one side. Dimensions at widest points approximately 130 mm x 70 mm wide x 7 mm thick. Weighs: 135 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.