
Rocks to Tumble
Best Rocks to Tumble (and Which Ones to Avoid)
Which rocks are best for rock tumbling: agate, jasper, quartz and more, why Mohs hardness matters, and which stones are too soft, brittle or porous to tumble.
Which rocks and minerals tumble well, and which to avoid.

Which rocks are best for rock tumbling: agate, jasper, quartz and more, why Mohs hardness matters, and which stones are too soft, brittle or porous to tumble.