Polished Tiger Iron slab TI405 polished crazy lace agate They usually occur as weathered

They usually occur as weathered out nodules formed by branched

DO197  Wanong Dendritic Opal slab polished on one side

SR104    Turee Creek spherulitic Rhyolite slab

155 mm x 150 mm  x 12 mm

Dimensions at widest points are approximately 175 mm x 65 mm x 35 mm

Polished Tiger Iron slab TI405 polished crazy lace agate They usually occur as weatheredTI405 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 110 mm x 100 mm x 9. 5 mm thick. Weighs: 234 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.