Natural Super 7 tumbled chips, undrilled, 5 mm - 7 mm. It is made naturally of: Amethyst, Crystal, Smoky Quartz, Cacoxenite, Rutile, Goethite and Lepidocrosite combined together. These stones are perfect to use in resin projects such as orgone/orgonites, inlaying, vase filler, fountains, art and craft projects, jewelry making, crystal gr