Polished Tiger Iron TI294 chalcedony 120 mm x 90 mm

120 mm x 90 mm  x 7 mm

More correctly an iron-rich

Hay thunder egg"

Weighs 776 grams

Dimensions at widest points approximately 80 mm x 50 mm x 40 mm thick

Polished Tiger Iron TI294 chalcedony 120 mm x 90 mmTI294 Tiger Iron rough rock, cut and polished on one side with a natural rough back. Dimensions at widest points approximately 95 mm x 25 mm wide x 30 mm thick. Weighs: 169 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.