Polished Tiger Iron slab TI370 striped jasper Dimensions approximately 85 mm x

Dimensions approximately 85 mm x 45 mm x 45 mm deep

Multiple magnetite cones

Dimensions at widest points approximately 290 mm  x 150 mm wide x 9 mm thick

TI270   Tiger Iron slab

Polished Tiger Iron slab TI370 striped jasper Dimensions approximately 85 mm xTI370 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 190 mm x 70 mm x 9 mm thick. Weighs: 367 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.