Polished Tiger Iron display specimen TI314 dendritic opal It weighs 137 grams

It weighs 137 grams

It weighs 284 grams

It weighs 267 grams

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

90 & 100 mm x 50 mm  thick

Polished Tiger Iron display specimen TI314 dendritic opal It weighs 137 gramsTI314 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