Bill Kotru has seen many mines give way during the 43 years he has been digging for opal in Lightning Ridge, but he now fears another collapse will soon take a local road with it. Authorities have ...

Narrator: High-quality black opal can cost over $10,000 per carat, making it one of the world's most expensive gemstones. But mining black opal isn't easy. After investing tens of thousands of ...

Tucked beneath the back of the stairs at the Ramada by Wyndham Tucson, 777 W. Cushing Street, Eritrean-born Huruy Zerzghi happily sells opals to anyone interested. But these are not just any opals; ...

The White Cliffs Underground Motel in outback NSW, the world's largest underground accommodation, is reopening on 16 March ...

Dan Measey loves opals. He’s addicted to their mesmerising colour and the thrill of finding them in the harsh Outback desert ...