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 ...

White, pink, yellow and blue opals hide in the rocky landscape of Spencer Opal Mines, the largest-producing precious opal mine in the United States.

Since the early 20th century, people have been working the Virgin Valley ground for opals. Two of the oldest mines in the region, both open to the public, are the Rainbow Ridge Opal Mine (where the ...

Royal Peacock Opal Mine. Since 1944, this family-owned business has been revealing Nevada’s opals. It costs $75-$190 per day to dig at this mine, but you get to keep the opals you find.

Colorful fossils discovered in Australia were found to belong to a stunning new species of dinosaur, according to a new report published in the Journal of Vertebrate Paleontology. The fossils were ...

A toe bone of Fostoria, preserved in opal. (Photo by Robert A. Smith, courtesy Australian Opal Centre) In another project, paleontologists recently discovered a new spike-armored dinosaur in Texas.

Eric was found in an opal mine in South Australia in 1987 and has aided researchers in understanding aquatic systems from millions of years ago. Not only was Eric’s body preserved, but so was ...

The new dinosaur fossil was found in an opal mine and has turned into the gem itself, making it the most complete opalized dinosaur skeleton in the world, according to a new study. One of the ...

Gemstones are precious, especially when they come filled with dinosaur bones.Back in the 1980s, a miner unearthed a slew of fossils preserved in opals in an opal mine near Lightning Ridge in ...