Polished Tiger Iron slab TI368 Polished slab. PRT115 Tumble polished Prehnite from

PRT115  Tumble polished Prehnite from Western Australia

Dimensions at widest points approximately 190 mm x 70 mm x 9

Dimensions at widest points approximately 70 mm x 70 mm x 25 mm thick

Dimensions at widest points approximately 210 mm x 55 mm x 10 mm thick

Dimensions at widest points approximately 160 mm x 150 mm x 50 mm thick

Polished Tiger Iron slab TI368 Polished slab. PRT115 Tumble polished Prehnite fromTI368 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 290 mm x 170 mm x 9 mm thick. Weighs: 1,182 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.