Polished Tiger Iron TI387 Marra Mamba Dimensions at widest points approximately

Dimensions at widest points approximately 220 mm x 85 mm x 10 mm thick

Dimensions at widest points approximately 110 mm x 70 mm x 30 mm thick

Weighs 318 grams

NJ477  A rough rock

Polished Tiger Iron TI387 Marra Mamba Dimensions at widest points approximatelyTI387 Tiger Iron rough rock, cut and polished on one side with a rough natural back. Dimensions at widest points approximately 140 mm x 85 mm x 60 mm thick. Weighs: 810 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.