Rocks are categorized into three main types: igneous, sedimentary, and metamorphic. There are over 4,000 identified minerals on Earth. Common rocks include granite, basalt, limestone, and sandstone.

A little knowledge of rocks and minerals will help you identify everything from jewelry to fossils. While reading this article may not turn you into a geologist, it should give you the basic ...

In nature, common minerals called silicates react with water ... Since the 1990s, scientists have been searching for ways to make rocks absorb carbon dioxide more rapidly through enhanced ...

No bigger than a smartphone, this remarkable rock has layers that tell the story of the working lives and hardships of miners in the 1800s. A flawless blue topaz gemstone - the largest of its kind - ...

Chemists at Stanford University have developed a low-cost way to remove carbon dioxide (CO 2) from the atmosphere using an unlikely source: rocks. The process involves heating common minerals ...