Do Rock Tumblers Really Work?

Most rocks will not perform well in a rock tumbler; however, a few types of rock can be successfully tumbled by a beginner if the rocks are carefully selected. These easy-to-tumble rocks include agate, jasper, chalcedony, and petrified wood.

How long does it take for a rock tumbler to work?

Most vibratory tumblers are run for 12 to 24 hours with a medium grit. Then the spent grit and mud are washed from the rocks. This step is repeated until the rocks are nicely smoothed. This usually takes between three and seven days depending upon the type of rock and their starting condition.

What does a rock tumbler do to rocks?

Tumblers work through facilitating collision, abrasion, and friction between rocks, water, and grit. Over time, with the right recipe and steps, these processes turn raw rocks into smooth, rounded, polished stones.