Polly Plastics Rock Tumbler Grit Refill, Final Polish 1200 Fine Aluminum Oxide, Stage 4 for Tumbling Stones (2 Pack) (3 lb.)

Shines up rocks with ease. If your a rock collecting nut that loves to polish rocks like me, this is some of the best prices and available stage 4 polishing compound on Amazon. Batch after batch, I’ve gotten consistent results from Poly Plastics grits.

Started back into rock tumbling about a year ago. Needing more supplies, I went on Amazon and settled on the Polly Plastics Media Grit Kit and was well pleased with the results. I did not bother to do a review at that time. When it came time to resupply, I decided to try a different vendor (see my other reviews if you wish to know). All was fine until I finished the polish step, which looked more like a pre-polish cycle. I first suspected the new ceramic filler I was using, but after removing all of that, and rerunning the pre-polish and polish step, the results were the same. I then set that batch aside and ordered more of the Polly Plastic polish (1200 grit). Keeping all of the filler media and slabs the same, I ran the polish step again with the Polly Plastic product. The results were night and day (see photos). I really lost a lot of material off my slabs and even had a few fracture during the last try, but now I know. Yes, I would recommend the Polly Plastic products.

This is not a final polish. It's a pretty polish. Use Aluminum Oxide for your final polish

It works great!!!

I've had trouble getting my rocks shiny, but this grit works great. Yes, it's a little more costly than some other grits, but it's worth every penny.