Polished Tiger Iron display specimen TI330 purple chalcedony Dimensions approximately 180 mm x

Dimensions approximately 180 mm x 85 mm x 9 mm thick

175 mm x 80 mm x 11 mm

Dimensions approximately 150 mm x 90 mm x 16 mm thick

Dimensions at widest points approximately 225 mm x 120 mm x 65 mm thick

Dimensions approximately 130 mm x 80 mm x 12 mm thick

Polished Tiger Iron display specimen TI330 purple chalcedony Dimensions approximately 180 mm xTI330 Tiger Iron rough rock, cut and polished on one side with a rough natural back and a cut base to stand as a display specimen. Dimensions at widest points approximately 225 mm x 90 mm x 45 mm thick. Weighs: 1,810 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