NIce Rough Lightning Ridge Seam Opal Specimen 20.05cts Grey/Light Base Pinks/Green Gamble

I have for sale a Nice Rough Opal Specimen from Lightning Ridge Australia. This one weighs 20.05cts and is 27x22x8mm,.,.  It has Mixed Light/Grey base Opal with some Pink/Green Fires through it, top/bottomed by Grey Potch Skin. There are various blocks of colour/bars running vertical through the piece.  Very interesting Specimen stone, or clean up and cut a Freeform/Pendant or similar from it. Nice lot.  Thanks for looking,.,.