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From the Jeerinah Formation in the Hamersley Ranges
The subtle lime green colouration is caused by the presence of nickel mineralisation
TI297 Tiger Iron slab
POP178 Pink Opal slab
Marra Mamba Tiger Eye slab
Polished Tiger Iron TI295 rare agate From the Jeerinah Formation inTI295 Tiger Iron rough rock, cut and polished on one side with a natural rough back. Dimensions at widest points approximately 120 mm x 40 mm wide x 55 mm thick. Weighs: 608 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