Gemstone and crystals can be used for a number of things. Gemstones & crystals are sometimes carried for good luck or spiritual reasons. They are also admired for their beauty. Some people put crystals or gemstones in Mojo bags. Some people carry gemstones or crystals in their purses, pockets, or under their pillow. Each gemstone or crystal, due to the natural formation is different, but they will appear similar to the pictured stones here. They are 1/2" - 3/4" in size. Also all of our gemstone can be wrapped and made into pendants are cleansed and charged and wrapped individually by my daughter, Melanie. A cord is included to be able to wear as a necklace. You can have them wrapped in silver-tone, gold-tone, or copper-tone wire.