In short: Two roads in the opal mining town of Lightning Ridge have been partially closed to traffic after mining cavities beneath the surface began to give way. Legacy mining cavities needed to be ...
4.38 x 2.5 x 0.5 in. (11.1 x 6.4 x 1.3 cm.) ...
12 x 18 x 18 cm. (4.7 x 7.1 x 7.1 in.) ...
Gift 5 articles to anyone you choose each month when you subscribe. A celebrated Australian opal fetched less than its lowest estimate at a US auction last month, the price tag a far cry from those ...
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