Giant agates found in an island on Panama’s Pacific coast prompted a study on how the Isthmus evolved and became a bridge between two continents Vanessa Crooks Sea conditions in the Pearl Islands can ...

The agate interior was lined by a thin white layer, like the eggshell of Earth’s largest animal. London Natural History Museum In 1883, what was believed to be a decorative crystal gemstone was ...

Known for their colors and patterns, collectors are often amazed at agates that turn up on Upper Peninsula lakeshores, with some known to be up to 20 pounds, according to the Michigan Department of ...

140 years ago, an agate specimen from India was registered in the Mineralogy Collection at London’s Natural History Museum. Now, a team of researchers say the suspiciously spherical agate formed ...

Unusual rocks and minerals are fun to collect, but when you stumble upon a rock formation that looks like a Muppet, that's extra special. Check out this blue agate. When split in half, it looks a lot ...

Feast your eyes on this agate, which researchers concluded this year formed inside the egg of a large dinosaur. The agate was found in India and registered in the collections of London’s Natural ...