NIce Rough/Sliced Koroit Opal Parcel 1001cts Some Great Patterns/Slight Fires :)

I have for sale a Nice Rough/Sliced Parcel of Koroit Opals from Queensland Australia. These weigh 1001cts in total. 4 Pieces in the lot. All very different, ironstone base pieces. Largest is a Half Nut with Concentric patterns, and slight Fires in places. Another has some Opal in the core at one end. Next has Opal between  the Bands in the material. Last has some Slight Greens in the patterns,.,. Specimens/Practice and clean up some Freeforms too,. Thanks for looking,.,.