Polished Tiger Iron slab TI278 Opalite 35 pieces of rough Green

35 pieces  of rough Green opal

Dimensions at widest points approximately 160 mm x 90 mm x 10

Dimensions at widest points approximately 80 mm x 60 mm x 40 mm thick

Peanut Wood slab

IRR 131    Fossil stromatolite slab

Polished Tiger Iron slab TI278 Opalite 35 pieces of rough GreenTI278 Tiger Iron slab, polished on one side . Dimensions at widest points approximately 100 mm x 45 mm wide x 8 mm thick. Weighs: 87 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.