Polished Tiger Iron TI380 tube agate Dimensions at widest points approximately

Dimensions at widest points approximately 175 mm x 85 mm x 50 mm thick

PU143  Purple Chalcedony slab

45 mm x 30 mm x 25 mm

CH421  Chrysoprase  slab polished  on one side

Weighs 870 grams

Polished Tiger Iron TI380 tube agate Dimensions at widest points approximatelyTI380 Tiger Iron rough rock, cut and polished on one side with a cut back and base to sit as a display specimen. Dimensions at widest points approximately 205 mm x 150 mm x 55 mm thick. Weighs: 4,920 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