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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 ...

A little knowledge of rocks and minerals will help you identify everything from jewelry to fossils. While reading this article may not turn you into a geologist, it should give you the basic ...

Sedimentary rocks aren’t just stones under our feet—they’re Earth’s storytellers, recording ancient environments, climate shifts, and even the creatures that once lived here. Formed through processes ...

If you draw with a pencil, you can tell how soft the graphite inside is. Pieces of graphite break off to leave the pencil mark. But can you imagine drawing with a diamond? Diamonds and graphite are ...

There would be no bright and colorful fireworks without rocks and minerals. A firework is produced by launching a shell containing fuel and a color mix high into the air, where it explodes. This ...

There would be no fireworks without rocks and minerals. An aerial fireworks burst is produced by launching a fireworks shell high into the air, where an explosion occurs. This explosion propels ...