Nice Boulder/Matrix Opal Rough/Rubs Parcel 439cts Some Nice Fires :) Qld

I have for sale a parcel of Nice Rubbed/Rough and Sliced Boulder/Matrix Opals from Queensland Australia. These weigh 439cts in total. They are Ironstone base material, some nice Blue/Green Fires in fine veins pattern through the material. Others have some Opal on the top face, Blue/Greens.. Interesting lot, Specimens/Practice and should clean up some nice usable pieces once worked through,.,.  Thanks for looking.,,.