Polished Tiger Iron slab TI364 stripey jasper The green colour usually derives

The green colour usually derives from minor mineral content

Lovely specimen

Dimensions at widest points approximately 380 mm x 110  mm with slightly tapering thickness of 12 - 14 mm

DO218  Dendritic Opal rough rock

Approximate weight of each piece is between 53 and 125 grams

Polished Tiger Iron slab TI364 stripey jasper The green colour usually derivesTI364 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.