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Opal mining 'ballrooms' carved out beneath Lightning Ridge threaten to collapse roads in state's gemstone capital
In opal mining terms, a ballroom is a large underground cavity often without pillars or roof supports. Mr Kotru said the ballroom underneath the roadworks was "maybe nine metres high and 50 metres ...
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At Lightning Ridge, palaeontologists, opal miners and fossil collectors come together to dig up precious relics
collectors and traders from all over Australia, and world-class palaeontologists like Jenni and Liz. Reading Liz and Bob's book on fossils redefined opal mining for Butch. “Finding a fossil in ...
BBC3y
An Aboriginal tool of petrified wood.
In 1966 whilst staying in the opal-mining area of Andamooka,South Australia, looking for opals around the mouth of an opal mine (noodling)I found an aboriginal stone cutting implement made from ...
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Why black opal is one of the most expensive gemstones in the world
But mining black opal isn't easy ... 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 ...