Nice Rubbed/Rough Koroit Opal Specimen 564cts Pattern/Fires Large Size :)

I have for sale a Nice Large and partially rubbed Koroit Opal from Queensland Australia. This one weighs 564cts. It is 55x53x25mm.,,. Wedge shaped Ironstone material, Nice Pattern in the thick end, some Green Fires, also White clay skin on the end covering that. Also some Reds/Greens showing on the Top face aswell. Large piece, Interesting material to slice up, see whats inside, should get a few usable Cabs from this one, also a Nice Carving type piece aswell,.,.,. Thanks for looking,.,.,.