Polished Tiger Iron TI367 stripey Asperia digitata (formerly Yelma digitata)

Asperia digitata (formerly Yelma digitata) from the Proterozoic "Yelma Formation"

Dimensions at widest points approximately 135 mm x 70 mm  x 9 mm thick

Weighs 995 grams

Weighs 469 grams

150 mm x 90 mm  x 45 mm

Polished Tiger Iron TI367 stripey Asperia digitata (formerly Yelma digitata)TI367 Tiger Iron rough rock, cut and polished on one side with a rough natural back. Dimensions at widest points approximately 230 mm x 180 mm x 40 mm thick. Weighs: 1,675 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.