3 Nice Rough Koroit Opal Specimens 278cts Queensland Australia Pattern/Fires

I have for sale a Nice Parcel of Rough Koroit Opals from Queensland Australia. These 3 weigh 278cts in total. They are Ironstone base material, all with some Nice Patterns in them. 2 have Fires, one is Greens/Blues in thin veins, the other has Blue/Purples  in a part Nut piece. Nice Intricate patterns to work with, one is Tribal pattern with very little if any colour,.,.  Should clean up some Freeforms, and cabs from these,.. or Great Specimens as they are,.,.,. Thanks for looking,.,.,.