Opal Mining: A Damn Good Way to Get Yourself Killed

Opal-mining is one of the world's most harrowing pursuits, but potentially one of the most rewarding as well. To find opals, a modern treasure hunter must dig random holes in areas of known deposits, and then lowering him- or herself down a 20 meter shaft. Besides the obvious problem of claustrophobia, and the danger… » 1/25/13 8:18am 1/25/13 8:18am