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 ...

Geologists were astounded to discover a rich, natural opal deposit almost 9,800 feet above sea level. The villagers in Wollo, Ethiopia, made the discovery almost 9,800 feet above sea level. Their ...

A hunt for precious gemstones revealed the first fossil evidence of a dinosaur herd, including a previously undiscovered dinosaur species, in Australia. The new dinosaur fossil was found in an opal ...

Coober Pedy is home to a small but diverse international community and mining and opal-themed attractions.

Ground-breaking hybrid renewables system installed at an outback opal mining town in South Australia is claiming a new record ...