Along a gravel road to the north of its namesake, the Grand Meadow Chert Quarry (or Wanhi Yukan as its known in the Dakota ...

Allentown Chert, also known as Conococheaque, Kittatiny, or Limeport, is a black chert. When weathered it becomes light gray. It has alternating lighter colored layers marking stomatolite traces. It ...

Ocala Chert, also known as Johnson Lake chert, is a light beige, light blue, light bluish tan, gray, caramel colored, fine grained chert. The grayish white colored variety is very fossiliferous. It ...

The Rhynie chert, renowned for its exceptional preservation, offers an unparalleled window into early terrestrial ecosystems dating back to the Early Devonian period, over 400 million years ago.

Chert from the Grand Meadow site has been found throughout the Midwest at archeological sites, Mather said. How far the site’s chert spread, though, ...

Now, a new study of the chert tools he carried reveals details of his lifestyle, his last days, and the trade networks that linked far-flung Alpine communities.

New research reveals Stone Age foragers in Africa traveled miles to collect colorful stones, showing early trade, taste, and ...

Jun. 30—It has been a long time coming, but on Saturday those behind the development of the Grand Meadow Chert Quarry Preserve and Wanhi Yukan Trail can celebrate the finish line. Saturday was ...

Chert is a sedimentary rock that occurs naturally in the landscape of Alabama. The mineral is often used by local governments in the U.S. as a construction material for roadwork.