Find Grit by Rock
Rock Chart for finding the right grit for some recommended rocks to tumble.
Rock Hardness and Grit Matching Chart
| Rock Name | Hardness | Product |
| Agate | 8 | Tumbler Grit Kit M8 |
| Apatite | 5 | Tumbler Grit Kit M5 |
| Garnet | 7 | Tumbler Grit Kit M7 |
| Glass | 1 | Tumbler Grit Kit G2 |
| Hematite | 6 | Tumbler Grit Kit M6 |
| Jadeite | 7 | Tumbler Grit Kit M7 |
| Jasper | 7 | Tumbler Grit Kit M7 |
| Labradorite | 7 | Tumbler Grit Kit M7 |
| Making Seaglass | 0 | Tumbler Grit Kit G1 |
| Marcasite | 7 | Tumbler Grit Kit M7 |
| Quartz | 7 | Tumbler Grit Kit M7 |
| Petrified Wood | 5 | Tumbler Grit Kit M5 |
| Rhodolite | 6 | Tumbler Grit Kit M6 |
| Sodalite | 6 | Tumbler Grit Kit M6 |
| Staurolist | 7 | Tumbler Grit Kit M7 |
| Topaz | 8 | Tumbler Grit Kit M8 |
| Tourmaline | 7 | Tumbler Grit Kit M7 |
| Zoisite | 7 | Tumbler Grit Kit M7 |
Mixed Rocks note: your rocks should be of the same or similar hardness for best results. If your rocks are different hardness pick the grit kit for the high hardness number from the chart