Polished Tiger Iron TI382 #brecciated pink opal Dimensions approximately 100 mm x

Dimensions approximately 100 mm x 90 mm x 90 mm thick

Green Opal occurs at a location south of Kalgoorlie in the Eastern Goldfields of Western Australia

340 mm x 110 mm  x 12 mm

190 mm x 160 mm x 9 mm thick

75 mm x 30 mm x  20 mm

Polished Tiger Iron TI382 #brecciated pink opal Dimensions approximately 100 mm xTI382 Tiger Iron rough rock, cut and polished on one side with a rough natural back. Dimensions at widest points approximately 110 mm x 60 mm x 30 mm thick. Weighs: 405 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.