AGATE comes from the quartz family and is found in countless shades and colors, from blue to black and from pink to bright firey red. The properties associated with agate can vary based on the color ...

You never know what you're going to get when you crack open a geode-like rock called an agate, but a new specimen is even more surprising than usual: It looks just like Cookie Monster. The agate, ...

Paleontologists have confirmed that a rock enclosing a perfectly round agate crystal is actually a titanosaur egg, which was probably smothered by lava after a volcanic eruption 67 million years ago.