Polished Tiger Iron slab TI291 striped jasper Dimensions at widest points approximately

Dimensions at widest points approximately 140 mm x 120 mm and 11 mm thick

Dimensions at widest points approximately 155 mm x 80 mm x 13 mm thick

Weighs 398 grams

75 mm x 30 mm x  20 mm

Weighs  588 grams

Polished Tiger Iron slab TI291 striped jasper Dimensions at widest points approximatelyTI291 Tiger Iron slab, polished on one side . Dimensions at widest points approximately 160 mm x 100 mm wide x 6. 5 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.