Polished Tiger Iron slab TI262 chrysoprase Dimensions at widest points approximately

Dimensions at widest points approximately 100 mm x 75 mm x 40 mm thick

Gaspeite slab

Weighs 834 grams

McGrath Formation" which has an age of close to 2 billion years

Dimensions approximately 85 mm x 85 mm x 70 mm thick

Polished Tiger Iron slab TI262 chrysoprase Dimensions at widest points approximatelyTI262 Tiger Iron slab, cut and polished on one side. Dimensions at widest points approximately 150 mm x 90 mm wide x 9 mm thick. Weighs: 317 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.