Polished Tiger Iron slab TI277 mookatite CH427 Chrysoprase nodule

CH427  Chrysoprase nodule

Weighs 188 grams

From Yerilla

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

Dimensions at widest points approximately 105 mm  x 95 mm wide x 6 mm thick

Polished Tiger Iron slab TI277 mookatite CH427 Chrysoprase noduleTI277 Tiger Iron slab, polished on one side . Dimensions at widest points approximately 155 mm x 80 mm wide x 8 mm thick. Weighs: 299 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.