Polished Tiger Iron display specimen TI338 Chrome chalcedony Weighs 88 grams

Weighs 88 grams

130 mm x 85 mm  x 11 mm

From near Newman in the Pilbara region of Western Australia

12 pieces rough Dendritic Opal

Weighs 213 grams

Polished Tiger Iron display specimen TI338 Chrome chalcedony Weighs 88 gramsTI338 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 165 mm x 130 mm x 80 mm thick. Weighs: 3,825 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