If you’re reading Hackaday, there’s a good chance you had a rock tumbler in your younger days. Hell, we’d put odds on a few of you having one rumbling away in the background as you read this. They’re ...

When you polish the rough edges away, you discover a beauty that was always there but was just a little hidden. Using this strategy, a rock tumbler turns ordinary-looking rocks into gems. However, to ...

We've ranked the best rock tumblers for beginners, kids, adults and professionals who love geology and are on the hunt for sea glass, agates and more When you purchase through links on our site, we ...

Which rock tumblers for kids are best? Collecting rocks is a great way to build a sense of exploration in your kids. Just give them a small bag, let them loose in the backyard or park and see what ...