Nice Rough/Rubbed Boulder Opal Parcel 624cts Some Fires Caramel Potch/specimens

I have for sale a nice parcel of Rough/Rubbed Boulder Opals from Queensland Australia. These weigh 624cts in total. Ironstone base material, all have some fires in/on/through them in places. Some better than others. Pink/Gold/Greens mostly. Great Specimens, Practice material, and freeform/cabs once worked through. Thanks for looking.