Crystal You will receive the Slice of Your Choice  - Stone Slices - Coaster Size - Smokey Quartz, Rose Quartz, Sodalite, with Gold and Silver Electroplated Edges - YOU CHOOSE - Home Decor (OB9) Agate slices have a beautiful Electroplated edge. These are made of natural stone therefore there will be slight imperfections. STOCK PHOTO. Each Slice will vary slightly in size and in characteristics. Choose your desired stone ! See photo of quarter and hand for approx. size. These slices are approx. .25" in thickness.