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, ...
CICERO, Ind. (Hamilton County Reporter) — Dean Caldwell of Cicero has been mining opal and obsidian for six months of the year in Mexico for the last 15 years. Last year, he pulled an opal out of the ...
Coober Pedy is renowned for its productive opal mining industry, but Aboriginal peoples' involvement in the practice has not been widely acknowledged. Aboriginal miners have participated in the ...
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