Brownstone is a soft sedimentary stone that is found in horizontal beds close to the earth’s surface in Connecticut’s Central Valley. It was deposited about 200 million years ago, when Africa ...

Shale, first and foremost, forms when the super-fine fragments of stones and minerals that are classified as “silt” settle and solidify. With fragments around 0.002 to 0.05 millimeters across, this ...

Plastistones, a new type of sedimentary rock that’s part-plastic and part-rock, has been found on at least five continents and 11 countries. These rocks form when molten plastic cools within a ...

Now, an international team has discovered an entire ecosystem preserved in sedimentary stone from the Early Pennsylvanian (a period from around 320 to 318 million years ago), containing more than ...

Inside these layers of multi-colored sedimentary stone, the remains of Allosaurus, Stegosaurus, Apatosaurus and more have been found through more than a century of fossil hunting.

Atlas Concorde says it drew inspiration from the sedimentary stone of the Ardennes Plateau in Belgium to create the Boost Mineral tile collection, enhancing the fine, compact grain of its surface ...

The yoke, made from sedimentary stone, is believed to have been made on the Gulf Coast during the Mesoamerican Classic period (400 CE-900 CE) in the Veracruz Central Classic style.