Polished Tiger Iron TI379 polished magneprase The matrix that this copper

The matrix that this copper based mineral forms on is kaolinite

Weighs 504 grams

90 mm x 60 mm x 30 mm

Approximate diameter at widest points of sun is 70 mm

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

Polished Tiger Iron TI379 polished magneprase The matrix that this copperTI379 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,