Polished Tiger Iron slab TI309 stromatolite Dimensions at widest points approximately

Dimensions at widest points approximately 150 mm x 110 mm x 11

Dimensions at widest points approximately 125 mm x 70 mm x 12 mm thick

Weighs 78 grams

Approximate dimensions at widest points 150 mm  x 120 mm  x 95 mm thick

60 mm x 25 mm  x 18 mm

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.