Polished Tiger Iron slab TI357 black jasper conglomerate 115 mm x 95 mm

115 mm x 95 mm x 45 mm thick

Dimensions at widest points approximately 90 mm

Dimensions approximately 135 mm x 110 mm x 5 mm thick

150 mm x 85 mm  x 9

Dimensions at widest points approximately 120 mm  x 95 mm wide x 8 mm thick

Polished Tiger Iron slab TI357 black jasper conglomerate 115 mm x 95 mmTI357 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 155 mm x 115 mm x 8. 5 mm thick. Weighs: 318 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.