Nice Rough Boulder Opal split Specimen 693cts Ribbon of Fires across Caramel potch Winton

I have for sale a nice and unusual Boulder Opal Split Specimen from Queensland Australia. Winton region. This weighs 693cts and is 49x36x45mm. This is Hard/Dark ironstone base with Caramel Potch + Opal on 2 of the faces. The main one has the ribbon of Multicolour Fires across the middle. Varies in width as it goes. There is only slight colour on the other face and corner area.  You may well get a bit more colour if you slice and rub it down,  the bar is diagonal so wont be much. Make a great desk specimen or Cabinet display once finished up. Thanks for looking.