Polished Tiger Iron display specimen TI314 dendritic opal Dimensions at widest points approximately

Dimensions at widest points approximately 65 mm x 45 mm x 20 mm thick

It weighs 284 grams

Dimensions at widest points approximately 100 mm  x 35 mm wide x 7 mm thick

100 mm x 60 mm x 8

It weighs 177 grams

Polished Tiger Iron display specimen TI314 dendritic opal Dimensions at widest points approximatelyTI314 Tiger Iron , a thick slab, polished on one side with a cut base to stand as a display specimen. Dimensions at widest points approximately 240 mm x 140 mm x 55 mm thick. Weighs: 3,771 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