Polished Tiger Iron slab TI317 green stones Dimensions approximately 145 mm x

Dimensions approximately 145 mm x 100 mm x 10

Dimensions at widest points approximately 80 mm x 70 mm

Weighs:  66 grams

From north of Newman in the Pilbara region of Western Australia

135 mm x 110 mm x 10 mm thick and weighs 295 grams

Polished Tiger Iron slab TI317 green stones Dimensions approximately 145 mm xTI317 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 110 mm x 55 mm x 6 mm thick. Weighs: 107 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.