Re: Opal. I've seen and lusted after the opal knife, probably like a lot of us. It's beautiful! It's definitely not pocket change but it only costs 12 times as much as Neolithics (Craig Ratzat) is asking for banded Polish flint. I ordered some from Australia and the shipped cost was $20 (U.S.) an once, which is a bargain compared to the $500 to $2000 an once they want for gem quality stuff. What I got comes in polished slabs about an inch thick; polished so you can get an idea what it looks like inside and, judging from the shape, because it comes from the ground in slab form (??). I got it because I had the extra money at the time, but it will be quite awhile before I get to where I think my skills are up to it. I'll also need to slab it first. Ozy Clint: I understand that they let you dig around in the opal fields (for a fee, I assume). You might be able to come up with some interesting stuff if you could get out there.