Polished Tiger Iron slab TI409 stand-up DO203 Dendritic Opal slab

DO203  Dendritic Opal slab

140 mm x 100 mm x 50 mm thick

and dominated

Dimensions at widest points approximately 310 mm  x 240 mm  x 12 mm thick

Dimensions at widest points approximately 90 mm x 75 mm x 45 mm thick

Polished Tiger Iron slab TI409 stand-up DO203 Dendritic Opal slabTI409 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 180 mm x 180 mm x 8. 7 mm thick. Weighs: 635 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.