I am a chemical sedimentologist: I study how and why chemical sediments form and lithify, with the goal of better understanding how chemical sedimentary rocks (e.g., carbonates, chert, iron formations ...

He was loading up some chert rock for a friend, the construction worker explained to Nexstar’s WKRN. David said he was close ...

Jewels, birthstones, gemstones—so many names for the glitzy, glamorous stones so many of us love to wear each and every day. This got us thinking: Is there a difference between jewels and gems?

Liam Payne is trying to show ex Cheryl he's ready to be a big part of their son Bear's life, a source has revealed, after the ...

After the chert is mined, it is trucked to Matsapha ... is already extracting vast quantities of rock at the head of the valley and has plans to mine an additional 400 hectares," Armstrong ...

Listen to an expert at Olduvai Gorge in Tanzania explaining the use of lava and chert rock tools With this species, which evolved around 1.5 million years ago, we encounter an ancestor who looked ...

An area of 40 feet by 60 feet was excavated down to rock, but beyond bones of the hippopotamus ... a number of small chert implements and three fragments of bronze. The pottery, mostly fragmentary ...

Radiant diamonds, sapphires, and rubies have been among the most coveted gemstones on the planet for nearly a century. But long before their reign, a far less dazzling gem captured the hearts of ...

The gemstone is known for its "play-of-color," or ability to shift hues. Rough opals appear white, but once polished, their surface shines a rainbow kaleidoscope. Opals can be found across the ...

Dwayne "The Rock" Johnson recently shared an emotional Instagram post about his visit with the Apalachee High School football team at an Atlanta film studio, where he has been filming. The team ...