The best rock tumbler for petoskey stones the national geographic hobby rock tumbler comes with simple instructions that make this easy for even a novice to use.
Petoskey stone rock tumbler.
The tumbler barrel is made of tire rubber to reduce the noise and it has a leak proof stainless steel lid.
And remember kids of all ages are always welcome at world of rocks.
Unlock the true potential of your favorite stones.
Whether you re a seasoned rock hound an artist who needs material or inspiration for your next project or just love beautiful things you re sure to discover something you love.
Many online sites warn against trying it.
But if we had some nice petoskey stones we would grind them to shape and polish them to a bright luster using a lapidary machine.
We sell rock tumblers and know a lot about them.
Petoskey stones in a rock tumbler a rock tumbler can be used to smooth rough petoskey stones.
If the stone begins to seem oily add denatured alcohol to the wheel and continue polishing until the oily look is gone.
Don t mix them with any rock or mineral harder than 4 mohs.
They are quite beautiful when you finish them by hand but i have to admit i was really surprised that they got far worse in the polish slurry inside the tumbler.
I did them in both the rotary and vibe units without much luck i got my best results in the vibe by using 1000 grit tripoli and then uncooked rice for 3 days but they still don t shine up like other rocks.
Petoskey stones are a strange breed.
How to polish petoskey stones with a rock tumbler.
Be warned that you will totally give up control of their shaping if you decide to use a rock tumbler as a labor saving method.
The tumbler will be most aggressive on the points edges and softer parts of the stone.
Petoskey stones are relatively soft with a mohs hardness of 3 to 3 1 2 so tumble polishing them safely can be a little tricky and is recommended for experienced lapidarists.
Petoskey stones michigan lots of people want to polish their petoskey stones in a rock tumbler.
A few months ago a friend sent me some petoskey stones to tumble for him and i ve just about had it with them.
For a small single barrel tumbler you ll usually pay between 70 and 120.
Whether it s a.