Polished Tiger Iron slab TI370 Rain Forest Jasper Dimensions approximately 100 mm x

Dimensions approximately 100 mm x 75 mm x 8 mm thick

Dimensions at widest points approximately 120 mm x 70 mm x 45 mm thick

Dimensions at widest points approximately 240 mm  x 160 mm x 10 mm thick

9  pieces rough Dendritic Opal

Polished Tiger Iron slab TI370 Rain Forest Jasper Dimensions approximately 100 mm xTI370 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 190 mm x 70 mm x 9 mm thick. Weighs: 367 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.