Polished Tiger Iron slab TI399 Polished rock. U116 Unakite rough rock

U116     Unakite rough rock

Dimensions at widest points approximately 130 mm x 70 mm x 7 mm thick

Weight of both is 877 grams

There are numerous Prase deposits in the Pilbara region of Western Australia

140 mm x 100 mm x 9

Polished Tiger Iron slab TI399 Polished rock. U116 Unakite rough rockTI399 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 130 mm x 70 mm x 7 mm thick. Weighs: 192 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.