This absolutely tremendous piece of Koroit boulder opal came from a jar of material we picked up from Two Skies. For those of you who don't know who Two Skies are, they do what we do but internationally, on a larger scale, and with faceting machines.
These are from the Koroit area. This piece has some gorgeous colour to it. Ideal opal for lapidary work or as a specimen. 
I will be sad to see this one gorgeous but I cannot keep it all.