Polished Tiger Iron slab TI384 asperia ashburtonia Approximate dimensions at widest points

Approximate dimensions at widest points 150 mm  x 95 mm  x 60 mm thick

Weight is 70 grams

Weight is 169 grams

DO230  Dendritic Opal slab

Polished Tiger Iron slab TI384 asperia ashburtonia Approximate dimensions at widest pointsTI384 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 220 mm x 170 mm Very slightly tapering thickness 6. 5 8. 5 mm thick. Weighs: 820 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.