Polished Tiger Iron display specimen TI330 oldest agate in the world Dimensions at widest points approximately

Dimensions at widest points approximately 90 mm x 50 mm x 40 mm thick

Dimensions at widest points approximately 105 mm x 65 mm x 7 mm thick

Lepidolite slab

CH467  Chrysoprase rough rock

Dimensions at widest points approximately 170 mm x 140 mm x 65 mm thick

Polished Tiger Iron display specimen TI330 oldest agate in the world Dimensions at widest points approximatelyTI330 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