But over 90% of the world's opal comes from Australia. And a lot of the black opal is found here, at Lightning Ridge. It's located on the edge of the Outback, with a population of just over 2,000 ...

Global demand for opals is soaring, pushing up prices of the gemstones. As the 40ft (12m) drill rattles down through the red dirt, miner Craig Stutley makes a statement that sounds a lot like what ...