Polished Tiger Iron slab TI324 Polished Rhodonite Dimensions at widest points approximately

Dimensions at widest points approximately 140 mm x 90 mm x 65 mm thick

SPF131   Fossil stromatolite

Dimensions at widest points approximately 170 mm x  125 mm x 30 mm thick

75 mm x 60 mm x 8 mm thick

Dimensions at widest point approximately 235 mm x 60 mm x 13 mm

Polished Tiger Iron slab TI324 Polished Rhodonite Dimensions at widest points approximatelyTI324 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 170 mm x 110 mm x 5. 8 mm thick. Weighs: 254 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.