Nice Dark Base Lightning Ridge Opal Rub/Preform 13.3cts Green Fires Australia :)

I have for sale a Nice Preformed and Part Polished Dark Base Opal from Lightning Ridge Australia. This one weighs 13.3cts and is 20x13x6mm.  It has Green Fires over the Top face.  Slight Blues. Darker Grey and some Lighter base, also a sand pocket in one corner. Slight Fires in the back aswell. This will clean up a nice Cab, Great pendant stone or specimen. Thanks for looking.,,.