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 ...

Lightning Ridge is the only place in the world where the black opal is found. This frontier town, 350 mi/565 km northwest of Sydney in New South Wales, is also the best place to buy this rare gem ...