Polished Tiger Iron slab TI384 axinite 390 mm x 120 mm

390 mm x 120 mm  x 22 mm

Dimensions at widest points approximately 90 mm x 45 mm x 35 mm thick

SPF129   Fossil stromatolite

110 mm x 110 mm x 30 mm thick

Weighs 964 grams

Polished Tiger Iron slab TI384 axinite 390 mm x 120 mmTI384 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 220 mm x 170 mm Very slightly tapering thickness 6. 5 8. 5 mm thick. Weighs: 820 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.