Polished Tiger Iron TI294 oldest agate in the world 145 mm x 60 mm

145 mm x 60 mm x 8

Dimensions at widest points approximately 90 mm x 75 mm x 6 mm thick

It weighs 203 grams

DO187  Wanong Dendritic Opal slab

Weighs 87 grams

Polished Tiger Iron TI294 oldest agate in the world 145 mm x 60 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.