Test your rock & mineral smarts—are you a Rock Star? Think you know rocks and minerals? Take the Science Trek quiz! Test your smarts on gold, salt, Earth’s oldest rocks, gemstones on Mars, and the ...

Rocks and minerals are closely related, but there are fundamental differences between the two. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

WYOMING, Mich. — What looks like just a rock to most people can hold much more meaning for collectors. The rock can be a story, a science lesson, or even a childhood memory. The Indian Mounds Rock and ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Minerals are the non-living building blocks of the natural world ...

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 ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. There would be no bright and colorful fireworks without rocks and ...