In January 2021, a photograph started circulating on social media that supposedly showed two halves of a rock resembling the character Cookie Monster from the children's show "Sesame Street": While it ...

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 ...

A Cookie Monster look-alike agate that was discovered in Brazil went viral last week. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content. California ...

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, ...