Polished Tiger Iron slab TI364 stripey jasper Approximate weight of each piece

Approximate weight of each piece is between 53 and 125 grams

The green colour usually derives from minor mineral content

Dimensions at widest points approximately 110 mm x 60 mm x 50 mm thick

130 mm x 85 mm x 40 - 45 mm thick

Under shortwave UV light it fluoresces a deep red colour

Polished Tiger Iron slab TI364 stripey jasper Approximate weight of each pieceTI364 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.