Thundereggs look like regular rocks from the outside, but contain intricate and colorful mineral patterns inside — often made ...

NASA and co-researchers from the United States, South Korea and Japan have found a new mineral named “Wassonite” in one of the most historically significant meteorites recovered in Antarctica in ...

The discovery is helping researchers understand what might linger on the bizarre surface of Saturn's moon Titan. This near-infrared, color mosaic from NASA's Cassini spacecraft shows sunlight glinting ...

Bluish-gray molybdenite, a molybdenium-sulfur mineral, in quartz from Wisconsin. More than 5,000 minerals have been identified on Earth, more than half of which are classified as rare, meaning they’ve ...

The United States is rich in many different types of minerals, some of which have been selected as state minerals to represent the state's geology, history, economy, and culture. Each state’s ...

There are about 6,000 different types of minerals, but only a couple hundred are gemstones. Learn more about these special minerals and how someone like you can find your own gemstone. Science Trek is ...

Granite colors range the spectrum from white to black to pink, but what makes a single rock type so variable? Here we will discover what makes each granite a different color, what that tells us about ...