Nice Sliced Koroit Opal Nut Specimen 178cts Patterns/Fires Queensland Australia

I have for sale a Nice Sliced, Koroit Opal Nut sectin from Queensland Australia. This one weighs 178cts in total. It is 64x41x7mm,.  It has Concentric rings of Ironstones, patterns and some Fires between them. Green/Blues mostly here. Redder band in the core. Interesting material, this will clean up a huge specimen or maybe a Large Pendant stone if drilled. Great Item, all these are Unique and its only a small number of the ones found have Fires in them,.  Thanks for looking,.,