Rocks Slabs and Specimens › Amethyst for tumbling Image 1 of 1 Amethyst for tumbling $35.00 Unpolished shown wet 2.75 lbs+ mostly smaller pieces for tumbling. Good rich purple color. Quantity: Add To Cart Added! Unpolished shown wet 2.75 lbs+ mostly smaller pieces for tumbling. Good rich purple color. Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More