Polished Tiger Iron slab TI342 rare Weighs: 239 grams

Weighs:  239 grams

140 mm x 85 mm x 10

Dimensions at widest points approximately 170 mm x 50 mm x 11 mm thick

Dimensions approximately 170 mm x 60 mm x 11 mm thick

The darker pink areas are chalcedony surrounded by lighter coloured opal

Polished Tiger Iron slab TI342 rare Weighs: 239 gramsTI342 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 130 mm x 75 mm x 7 mm thick. Weighs: 157 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.