Polished Tiger Iron slab TI392 black jasper conglomerate Approximate dimensions at widest points

Approximate dimensions at widest points 110 mm  x 70 mm  x 45 mm thick

PC112 Chalcedony slab

Dimensions approximately 120 mm x 90 mm x 60 mm thick

Consisting of blue chrysocolla

Dimensions at widest points approximately 160 mm x 65 mm x 10 mm thick

Polished Tiger Iron slab TI392 black jasper conglomerate Approximate dimensions at widest pointsTI392 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 190 mm x 125 mm x 10. 5 mm thick. Weighs: 641 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.