Hypnotic Gems Materials: 1 lb Bulk Rough Flint Stones from Denmark - Raw Natural Crystals and Rocks for Cabbing, Lapidary, Tumbling, Polishing, Wire Wrapping, Wicca and Reiki Crystal Healing Beautiful Natural Flint may contain Black, Dark Blue and Gray Color Shades Stone sizes average from 1" to 2" for most pieces! Each and every specimen is unique and you will receive stones similar to the image shown! Stones in our images have been soaked in water to showcase their potential! Includes only authentic Hypnotic Gems certified stones - Mined from specific veins exclusively for Hypnotic Gems to ensure quality!