Posts Tagged ‘step 1 rock tumbling guideline’

Fill the tumbler approximately 2/3 full of stones. Add abrasive. 80 Grit is a popular choice. Stones that are very rough may require a coarser grit. 8 to 10 pounds of rock will take 3/4 to 1 cup of grit. You can add 1/2 teaspoon of baking soda to cut down on gas buildup. Filler can be added (plastic pellets) to help carry the abrasive between the stones. Add water, enough to cover the rocks. Start the tumbler. Check progress after 24 hours and then every 2 to 3 days after that. The first grind should take between 6 and 8 days. After you are satisfied with the first grind, wash and dry the stones completely before beginning the next step. All rough grit must be removed from the stones.