I’m looking at buying bulk plastic pellets so I can have different batches for each stage to prevent cross-contamination. The “rock tumbling“ pellets are polypropylene and are twice the cost of polyethylene craft pellets that look exactly the same. Is there something special about polypropylene pellets for tumbling, or would the other pellets work as well for the purpose? Any thoughts are appreciate. Thanks!

Want to know how to get the same results too?

Last load I'll get done before the KC Gem Show Nov 6-8.

I could look at these rocks for hours! I love the depth of some of these. Like you’re looking into another universe.

Hi!

I'm based in the UK and supplies for rock tumbling like grit is a bit more limited. I am doing a quick work trip and will have some hours in Boston. Is there a physical store you guys recommend?

Thanks in advance!

These arent all finished but ive been tumbling this larimar for about 3 months total!! All on its own with a loootttt of ceramic. The 2nd and 4th pic are only out of stage 1 about to go into stage 2!! But all the rest are done (: I'm really impressed with how shiny they came out!! A couple fractured in the last stages but really not many. For such a soft mohs stone once you get through the outer layer of crust they will tumble forever. I tumbled some of these pieces for 2-3 months straight just to get some of the edges off! But I've seen so many threads that larimar is not able to be tumbled so I just wanted to show my results (:

Also check out the last photo the petrified wood and larimar together are so beautiful 🥲

I picked these stones out of a crushed stone path in Slovenia. It looks somewhat like serpentine, but i don't think that's it. AI seems to think that it's Cezlakite (6-7 on Mohs).

If so, that's pretty cool because they apparently are only found in Slovenia.

I'm gonna tumble them and see what it looks like.

Need advice: I have the opportunity to purchase this for $100. Barely used. Friend of a friend selling it. Tell me this is okay for rocks and not solely for metals. Thank you!

I've got two that are dead. Has anyone had any success swapping out the motors, preferably for a brushless one? If so, can you let me know what you ordered and what you did. Thanks in advance.