NIce Quality Indonesian Opal Rub/specimen 21cts Multicolour Fires Black Base

I have for sale a Nice Quality Indonesian Fossil/Branch Opal Rub , this one weighs 21cts and is 26x14x8mm.. It is Black Base material with Crystal/and Light Base Opal across and therough the piece. Nice Colour on both/All sides. The Top, (Main Pic) has Orange/Gold/Reds and some Blue/Greens, the back has Nice Colour too, just less than the front. Great Piece, Nice specimen or clean up and make a Unique pendant or similar,.,.  Thanks for looking.,,.,.