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 ...
The Queensland government has confirmed it will allow opal mining to continue on land surrounded by a new national park. Vergemont Station was purchased by the state in April last year. Miners with ...
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