Polished Tiger Iron slab TI389 magnesite Dimensions at widest points approximately

Dimensions at widest points approximately 110 mm x 85 mm x 9 mm thick

IRR120  Fossil stromatolite slab polished on one side

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

Weighs 878 grams

Polished Tiger Iron slab TI389 magnesite Dimensions at widest points approximatelyTI389 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 200 mm x 45 mm x 7. 5 mm thick. Weighs: 190 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.