Pumice Powder - Rock Tumbling Polish

Pumice powder is a fine, non-abrasive volcanic ash adds a gentle touch to the final stage, removing the faintest scratches and leaving a soft, satin-like finish. 

Use pumice powder after your rocks have been smoothed and pre-polished with fine grits like F400 or F600. Ensure rocks are clean and free of grit residue.

We recommend pumice powder for hobby tumbling which is why it's included in our beginner grit pack.