Polished Tiger Iron TI366 Wanong Dendritic Opal 115 mm x 110 mm

115 mm x 110 mm x 10 mm thick

Dimensions at widest points approximately 85 mm x 50 mm x 20 mm thick

Weighs 388 grams

Weight is 271 grams

Dimensions at widest points approximately 135 mm  x 135 mm x 40 mm thick

Polished Tiger Iron TI366 Wanong Dendritic Opal 115 mm x 110 mmTI366 Tiger Iron rough rock, cut and polished on one side with a rough natural back. Dimensions at widest points approximately 170 mm x 70 mm x 30 mm thick. Weighs: 802 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.