Made it to the Grawin Opal Field during my 2009 buying trip. Was able to find quite a lot of low grade opal and a nice parcel of high grade material, but very little in between. Production seems to be dropping more every year and is very disappointing for someone looking for parcels. The comments I’ve gleaned from the miners are that restrictive government regulations and expensive deisel fuel are driving the small opal miner partnerships out of business.
And we’ve heard disappointing news from OPA4 (Opal Prospecting Area 4)…very expensive mining and very little results. Hopefully with time and further exploration in OPA4 Lightning Ridge opal will become more plentiful!