Polished Tiger Iron slab TI274 rock block Dimensions at widest point approximately

Dimensions at widest point approximately 190 mm x 75 mm x 55 mm

Weight 786 grams

from the Proterozoic "Duck Creek Dolomite"

KA127 Kumarina Agate rough rock

Weighs 64 grams

Polished Tiger Iron slab TI274 rock block Dimensions at widest point approximatelyTI274 Tiger Iron slab, polished on one side . Dimensions at widest points approximately 105 mm x 90 mm wide x 9 mm thick. Weighs: 221 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.