Polished Tiger Iron TI341 black conglomerate The environment they grew in

The environment they grew in was most probably a sandy tidal flat or braided river channel

105 mm x 75 mm x 7 mm thick

65 mm x 45 mm x 20 mm

Dimensions at widest points approximately 90 mm x 85 mm x 7 mm thick

165 mm x 110 mm x 50 mm thick & weighs 1

Polished Tiger Iron TI341 black conglomerate The environment they grew inTI341 Tiger Iron rough rock, cut and polished on one side with a rough natural back. Dimensions at widest points approximately 95 mm x 60 mm x 45 mm thick. Weighs: 378 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.