Polished Tiger Iron slab TI290 chalcedony Dimensions at widest points approximately

Dimensions at widest points approximately 155 mm x 80 mm x 13 mm thick

Weighs 638 grams

A bulk assortment of fairly uniform size

Weighs 173 grams

DOT101  Tumble polished Dendritic Opal

Polished Tiger Iron slab TI290 chalcedony Dimensions at widest points approximatelyTI290 Tiger Iron slab, polished on one side . Dimensions at widest points approximately 120 mm x 90 mm wide x 8 mm thick. Weighs: 259 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.