Blue sandstone, with a silver toned crescent moon charm. Although blue sandstone is not formed naturally, it is created by man usually using feldspar, gypsum, or a very shiny glass. The way blue goldstone looks reminds me so much of vibrant stars from the night sky, or even a galaxy from our point of view on earth, I love using this material to create astronomy themed pieces! Lava beads are perfect for aromatherapy use. Volcanic rock works like a natural diffuser, emitting an aroma of whatever t