Polished Tiger Iron slab TI309 stromatolite Dimensions at widest points approximately

Dimensions at widest points approximately 110 mm x 90 mm x  45 mm thick

Dimensions at widest points approximately 140 mm x 70 mm x 10 mm thick

130 mm x 90 mm x 8 mm

Approximate weight of each piece is between 82 and 165 grams

Face is approximately 90mm x 50mm and  9mm thick

Polished Tiger Iron slab TI309 stromatolite Dimensions at widest points approximatelyTI309 Tiger Iron slab, polished on one side. Amazing folding ! Dimensions at widest points approximately 95 mm x 70 mm x 7 mm thick. Weighs: 135 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.