Polished Tiger Iron slab TI313 Polished dendritic opal Dimensions at widest points approximately

Dimensions at widest points approximately 370 mm x 110  mm with slightly tapering thickness of 11 - 14 mm

Dimensions at widest points approximately 100 mm x 90 mm

Dimensions at widest points approximately 70 mm x 90 mm x 70 mm thick

x 6 mm thick

Polished Tiger Iron slab TI313 Polished dendritic opal Dimensions at widest points approximatelyTI313 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 195 mm x 140 mm x 8 mm thick. Weighs: 646 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.