Polished Tiger Iron slab TI292 Irregully formation Oldest agates on Earth

Oldest agates on Earth

Dimensions at widest points approximately 150 mm x 80 mm x 90 mm thick

From near  Marble Bar in the Pilbara region of Western Australia

Dimensions at widest points approximately 170 mm x 80 mm x 50 mm thick

NJ433  A rough rock

Polished Tiger Iron slab TI292 Irregully formation Oldest agates on EarthTI292 Tiger Iron slab, polished on one side . Dimensions at widest points approximately 120 mm x 60 mm wide x 7 mm thick. Weighs: 127 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.