Polished Tiger Iron slab TI411 Kumarina Agate Dimensions at widest points approximately

Dimensions at widest points approximately 140 mm x 100 mm x 80 mm thick

Dimensions at widest points approximately 100 mm x 75 mm x 70 mm thick

Rough Lime (Nickeliferous) Magnesite

140 mm x 70 mm  x 8 mm

Weighs 587 grams

Polished Tiger Iron slab TI411 Kumarina Agate Dimensions at widest points approximatelyTI411 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 100 mm x 65 mm x 9 mm thick. Weighs: 154 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.