Ok I have been looking for something to break down the chips off the PUB to refine. I have seen people make there own tumblers and crush them in fine powder. But they are LARGE and often require going over several times. My son who is into rocks and helping me make pens and jewellery suggested a polisher. Hmmm as I looked into it I found a fee here is one designed for rocks and you can get the ball shot or as scrappers we can use our own materials.
Please let me know what you think.
http://www.cooksongold.com/Jewellery-Tools/Stone-Tumbling-Machine-2lb-prcode-999-6007
Please let me know what you think.
http://www.cooksongold.com/Jewellery-Tools/Stone-Tumbling-Machine-2lb-prcode-999-6007