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

The green colour usually derives from minor mineral content

Under shortwave UV light it fluoresces a deep red colour

It weighs 230 grams

Weighs:  299 grams

130 mm x 85 mm x 40 - 45 mm thick

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.