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Opal mining 'ballrooms' carved out beneath Lightning Ridge threaten to collapse roads in state's gemstone capitalBill 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 ...
Residents in the outback town of White Cliffs had been preparing for the worst after enduring a dry six months.
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At Lightning Ridge, palaeontologists, opal miners and fossil collectors come together to dig up precious relicsIn north-west New South Wales, the opal mining town of Lighting Ridge sits atop a Cretaceous coastal flood plain. The dry, eucalypt and acacia-covered landscape around here is just its latest ...
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 ...
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