Polished Tiger Iron slab TI392 agate Dimensions at widest points approximately

Dimensions at widest points approximately 110 mm high x 95 mm  x 75 mm thick

130 mm x 110 mm x 150 mm thick

Asperia ashburtonia from the Proterozoic "Duck Creek Dolomite"

Dimensions at widest points approximately 110 mm x 100 mm x 7 mm thick

Polished Tiger Iron slab TI392 agate Dimensions at widest points approximatelyTI392 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 190 mm x 125 mm x 10. 5 mm thick. Weighs: 641 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.