These tumbled stones come in various sizes and shapes. Some are smooth some are a bit harder and there for a bit rough. The stones you get are the ones seen above. This is a value pack version of our 6oz mystery gemstone bag. Also, not a mystery. Below is a small list of stones you could find: Amethyst, Rose Quartz, Clear quartz, citrine, aventurine, sodalite, lapis, Jasper, carnelian, Agate, Tigers eye, hematite. This list does not limit the stones you might find this is just a short list of what you could find.