Polished Tiger Iron display specimen TI330 oldest agate in the world CH474 Chrysoprase slab

CH474  Chrysoprase slab

180 mm x 70 mm x 11 mm

Dimensions at widest points approximately 150 mm x 80 mm x 65 mm thick

CH467  Chrysoprase rough rock

Polished Tiger Iron display specimen TI330 oldest agate in the world CH474 Chrysoprase slabTI330 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