Polished Tiger Iron TI379 polished magneprase Dimensions at widest points approximately

Dimensions at widest points approximately 160 mm x 75 mm x 10 mm thick

Weight  is 662 grams

Weighs 536 grams

The matrix that this copper based mineral forms on is kaolinite

Weighs 710 grams

Polished Tiger Iron TI379 polished magneprase Dimensions at widest points approximatelyTI379 Tiger Iron rough rock, cut and polished on one side with a rough natural back and a cut base to sit as a display specimen. Dimensions at widest points approximately 190 mm x 80 mm x 35 mm thick. Weighs: 1,283 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,