Polished Tiger Iron slab TI280 crystophase 165 mm x 100 mm

165 mm x 100 mm x 65 mm thick

from the Proterozoic "Duck Creek Dolomite"

150 mm x 90 mm  x 45 mm

285 mm x 90 mm x 10 mm thick

Skin of chrysoprase on this one

Polished Tiger Iron slab TI280 crystophase 165 mm x 100 mmTI280 Tiger Iron slab, polished on one side . Dimensions at widest points approximately 120 mm x 55 mm wide x 8 mm thick. Weighs: 139 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.