Our tumbled crystal gemstones come in a variety of shapes and sizes.  There is no coating or chemicals on the gemstones as they are made in rock tumblers.  With abrasive grit, water and a good amount of time the gemstones come out smooth and ready to be utilized for their healing techniques.  Carrying them in your pocket, meditating with them, or placing them near you is a great way to get a small amount of consistent energy from the crystal.