Polished Tiger Iron slab TI324 polished magneprase 8 billion years

8 billion years

All reasonably uniform in size (roughly 20 - 30 mm diameter} A bulk assortment

145 mm x 100 mm x 40 mm thick

Dimensions at widest points approximately 170 mm x 70 mm x 70 mm thick

Polished Tiger Iron slab TI324 polished magneprase 8 billion yearsTI324 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 170 mm x 110 mm x 5. 8 mm thick. Weighs: 254 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.