Check the listing for details. Agate Nodules Nicknamed Potato Agates 10 Pound Lot, Some w/crystals, some solid. Condition: New. Listed at 30.00 USD. I have been a rock hound for about 55 years, and have a wide variety of different stones, and slabs. I purchased a retail rock shop, that was in business for about 50 years, and then the owner passed away. That was in about 1975. Since then I have collected about another 35 Tons of material, most of it from my claim of 20 years at Graveyard Point. I will have a lot of different stones and slabs that I will be selling.10 Pound lot of what the local Rock Hounds have named Potato Agates.Nodules formed by volcanic action. Some of the nodules will be hollow with crystals, and some will be solid. They can be used for tumbling, slabbing, or as display pieces. Most of the pieces are small for tumbling, but will include a few larger ones in each order. I really like this item and hope you will too.Will ship in a USPS, Priority Mail, Medium, Flat Rate box.Thanks for looking