Most of the time, when people refer to a place as "being underground", they're speaking figuratively. That isn't the case in ...

"When I see the earth, my palms get itchy," says Trevor Berry. The Adelaide native first came to the largely subterranean town of Coober Pedy in South Australia's mineral-rich outback on a school trip ...

The red dirt in central Australia might be a close mimic for the red surface of Mars, suggests research that sheds light on how opals formed in the land Down Under. Precious opal is Australia’s ...

German retailer Koroit Opal Company specializes in curating and selling Australian gemstones. Koroit is not just the company’s namesake but a well-known opal mining region in Queensland. It’s also the ...