Polished Tiger Iron slab TI268 crystophase 180 mm x 100 mm

180 mm x 100 mm x 35 mm thick

Dimensions at widest points approximately 115 mm x 75 mm x 10 mm thick

CC121  Chrome chalcedony slab

Approximate dimensions at widest points 200 mm  x 100 mm  x 60 mm thick

All reasonably uniform in size (roughly 20 - 30 mm diameter}

Polished Tiger Iron slab TI268 crystophase 180 mm x 100 mmTI268 Tiger Iron slab, cut and polished on one side. Dimensions at widest points approximately 130 mm x 70 mm wide x 7 mm thick. Weighs: 135 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.