The Australian Opal Centre has announced the return of its nine-day Australian Opal Tour, visiting four opal-producing regions.

Lightning Ridge Famous opal mining town Although there are lots of opal mining towns in Australia there are four which have become household names - Coober Pedy, Andamooka, White Cliffs and Lightning ...

Following is a transcript of the video. 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.

In a dazzling discovery, fossils brought up from a mine in Wee Warra, near the Australian outback town of Lightning Ridge, belong to the newly named dinosaur species Weewarrasaurus pobeni. The animal, ...

CSIRO and a consortium of Australian Opal miners (Opal Producers Australia Limited) have unveiled the world's first automated device to grade opals using image analysis, at the 2009 National Council ...