Polished Tiger Iron slab TI304 asperia ashburtonia Dimensions at widest points approximately

Dimensions at widest points approximately 100 mm x 60 mm x 40 mm thick

Dimensions approximately 100 mm x 90 mm x 80 mm thick

CH425  Chrysoprase nodule

DOT103  Tumble polished Dendritic Opal

Polished Tiger Iron slab TI304 asperia ashburtonia Dimensions at widest points approximatelyTI304 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 185 mm x 160 mm x 8 mm thick. Weighs: 562 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.