Polished Tiger Iron TI381 polished prehnite CH412 Chrysoprase cut and polished

CH412  Chrysoprase cut and polished  on one side with a rough

It weighs 348 grams

OG180   Polished orbicular granite with natural rough back

225 mm x 110 mm x 10

MK450   Mookaite

Polished Tiger Iron TI381 polished prehnite CH412 Chrysoprase cut and polishedTI381 Tiger Iron rough rock, cut and polished on one side with a rough natural back. Dimensions at widest points approximately 180 mm x 75 mm x 40 mm thick. Weighs: 856 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 chatoyant golden tiger eye.