Rock tumbling is four weeks of patience and grit, and the payoff is a bucket of stones that look like gems. A rotary tumbler with a rubber barrel (quiet!), a four-stage grit kit, two pounds of rough mixed stones, and the polish that brings the shine. Plug it in, forget it, change the grit every week.
Plans
Choose a plan that fits your needs and budget
Item List
6Grit & Polish
2 items
Rough Rocks
2 itemsTumbler & Barrel
2 items
Plan Totals$166
Grit & Polish
2Total$166
FAQ
Common questions about this kit
How long does a batch take?
Four stages over about four weeks — coarse, medium, fine, then polish, with a week per stage plus cleaning between. Rush it and the stones stay scratched.
Why a rubber barrel?
It is quiet enough to run in the house. Plastic barrels are loud; rubber barrels muffle the clatter so the tumbler can live in the garage without driving you mad.
Can I tumble rocks I find?
Yes, if they are hard (Mohs 7+). Quartz, agate, and jasper tumble beautifully. Test a shard with a steel nail — if the nail scratches it, it is too soft, skip it.
What is the grit made of?
Silicon carbide for the grinding stages (coarse/medium/fine) and aluminum oxide or cerium oxide for the polish. Each stage uses a finer grit than the last.
User Reviews
4.5 / 5.0
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Rockhounding and my fossil hunting share the right-rock-and-the-safety gospel — the strike-along-the-cleavage is the split-along-the-bedding-plane. Know the rules of the land, agreed.
Rock tumbling and my AI image refinement share the iterate-and-polish gospel — four stages of finer grit is the same as four passes of upscaling. Patience and the right medium per stage, agreed.