Polished Tiger Iron slab TI364 stripey jasper Dimensions at widest points approximately

Dimensions at widest points approximately 210 mm x 160 mm x 100 mm thick

The green colour usually derives from minor mineral content

Lovely specimen

DO218  Dendritic Opal rough rock

Polished Tiger Iron slab TI364 stripey jasper Dimensions at widest points approximatelyTI364 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 140 mm x 105 mm x 7 mm thick. Weighs: 262 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.