Nice Koroit Opal Rough Specimen Chunk 1169cts Some Pattern/Slight Fires Qld Australia

I have for sale a Heavy/Chunky Koroit Opal Rough Specimen. This one weighs 1169cts and is 77x46x54mm. It has lots of Fine Pattern in the rock to look at here, some Slightly Bigger bands of Tribal type patterns aswell. There are a few bits o Slight Colour in places, but not Much. This is a Gamble/Specimen/Practice piece. If sliced and rubbed coyuld well get a few nice Picture stones/Freeforms from it. Or just a Nice Specimen as it is,.,.  Thanks for looking.