Polished Tiger Iron slab TI357 black jasper conglomerate 150 mm x 85 mm

150 mm x 85 mm  x 9

Dimensions approximately 145 mm x 135 mm x 75 mm thick

Dimensions at widest points approximately 130 mm  x 125 mm wide x 8 mm thick

cut and polished at right angles to crystal growth

Polished Tiger Iron slab TI357 black jasper conglomerate 150 mm x 85 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.