Polished Tiger Iron slab TI359 annular rings TIR157 Tiger Iron rough rock

TIR157 Tiger Iron rough rock

Dimensions at widest points approximately 130 mm x 110 mm x 8 mm thick

Dimensions at widest points approximately 45 mm x 43 mm x 15 mm thick

Each piece approximately  4 - 5 cm at widest points

Dimensions at widest points approximately 135 mm x 55 mm x 45 mm thick

Polished Tiger Iron slab TI359 annular rings TIR157 Tiger Iron rough rockTI359 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 290 mm x 170 mm x 12. 5 mm thick. Weighs: 1,694 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.