Polished Tiger Iron slab TI389 magnesite Dimensions at widest points approximately

Dimensions at widest points approximately 130 mm x 60 mm x 8 mm thick

105 mm x 85 mm x 7 mm thick

PU126  Purple Chalcedony slab

Weighs 878 grams

IRR120  Fossil stromatolite slab polished on one side

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.