At almost 10,000 feet above sea level, villagers in northern Ethiopia have uncovered a seam of pure black opal buried within ...

Villagers in Ethiopia uncover rare black opal nearly 10,000 ft high, reshaping the global gem market with vibrant stones.

Those who love to dig around in discount bins and browse resale shops know the unique thrill of discovering a gem at the thrift store. One Redditor recently scored big with a beautiful and rare find.

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 ...