Polished Tiger Iron slab TI350 polished prehnite MK468 Mookaite cut and polished

MK468   Mookaite cut and polished on one side with a rough natural back

White feldspar interspersed

CH437  Chrysoprase  slab polished  on one side

155 mm x 80 mm x 60 mm thick

Dimensions approximately 100 mm x 50 mm x 11 mm thick

Polished Tiger Iron slab TI350 polished prehnite MK468 Mookaite cut and polishedTI350 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 270 mm x 160 mm x 12 mm thick. Weighs: 1,279 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.