ROCK AND TUMBLE
Rock Tumbling Grit Kit | Pre-Measured for 3 LB Barrel | Silicon Carbide and Aluminum Oxide
Rock Tumbling Grit Kit | Pre-Measured for 3 LB Barrel | Silicon Carbide and Aluminum Oxide
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Our Rock Tumbling Grit Kit provides pre-measured material to complete a polishing cycle for your own 3 LB rotary tumbler. Follow our step-by-step guide to transform your raw stones into shiny and polished tumbled stones from start to finish!
The kit includes:
• Stage 1: Coarse (80 Grit) Silicon Carbide x2
• Stage 2: Medium (220 Grit) Silicon Carbide
• Stage 3: Fine (600 Grit) of Silicon Carbide
• Stage 4: Polish (Aluminum Oxide at 1 - 3 micron size)
• Stage 5: Burnish (Borax)
• 8 oz of Ceramic Media
• Custom Cardboard Storage Box: 7"L x 4.5"W x 2" H
• Detailed Instruction Card with Tips and Advice
Note* tumbling barrel is for reference only and not included in this bundle
Optional Bundle:
• We include options for you to add 2 LBs of hand-selected rough rocks to pair with our grit for your rock tumbling journey. Our Agate Mix is shown as example in product photos.
More about rock tumbling:
The process of rock tumbling consists of four stages of finer and finer abrasive grit that slowly smooths down natural imperfections in the rocks until the surface exhibits a rounded, clean finish. The fifth stage is all about bringing out that mirror-like luster!
We recommend using stones between 5 and 7 on the Mohs Hardness Scale. Examples include:
- Agate
- Jasper
- Quartz (e.g. amethyst)
- Chalcedony
- Apatite
- Obsidian
Note: Each stage is packed and measured by hand in individual bags for each stage.
Tumbling Stage 1: Silicon Carbide (Grit 80)
• The coarsest grit used in the first stage of the tumbling process rounds and shapes your rocks.
Tumbling Stage 2: Silicon Carbide (Grit 220)
• 220 Silicon Carbide is a finer grit that is used to remove the scratches left by the coarser 80 Silicon Carbide (from Stage 1).
Tumbling Stage 3: Silicon Carbide (Grit 600)
• 600 Silicon Carbide is an even finer abrasive than the 220 Silicon Carbide that is used to remove the microscopic scratches left from the prior stage.
Tumbling Stage 4: Micro Aluminum Oxide (1-3 micron size)
• Our Micro Aluminum Oxide Polish is used in the Tumbling Stage 4 to finally impart the mirror like shine upon your rocks.
Tumbling Stage 5: Burnishing (Cleaning)
• We recommend a "half day" cleaning cycle (about 7 hours) using Borax. This helps remove any leftover "film" from the Polishing Powder from Stage 4.
The Grit Kit was packaged quite nicely. I'm not far enough along in my tumble to know how it preforms.
The mixed rocks & the leapard skin jasper were beautiful! I can't say anything negative there. They appeared to be great & are happily tumbling away.
The Mexicsn Crazy Lace was stunning, but also unbelievably fractured. I reached out & was told the cracks will easily tumble out. I am hoping this is true! I kept a larger piece out bc it's just so stunning, & bc it has what appears to be deep fractures. I also didn't want a piece too heavy to add further stress on the ones I put in to tumble. A couple of them look quite cracked as well. I was told by fellow tumblers they were going to break apart. I am hoping this is not the case.
Customer service gave a quick reply when I reached out. I am hoping they were right when they said the fracture lines were just that, surface fractures & not deep cracks. I don't want those beautiful stones to become pebbles.
We shall see soon.
I have completed most stages except for the final stage the media did a great job, the rocks finished quicker than expected in stage 1 and 2