Zeolite
Zeolites are a family of minerals and related minerals, including apophyllite, chabazite, stilbite, heulandite, goosecreekite, laumonite, natrolite and others. Technically, zeolites are framework silicates with exchangeable captions and some of the minerals considered zeolites metaphysically do not strictly fit the technical criteria, but are like "cousins" with some metaphysical properties that are the same. In particular, zeolites are said to be extraordinarily helpful for absorbing and removing toxins, whether it be in the environment or in a person. In a person, this metaphysical aspect makes zeolites excellent healing stones, and they are often used in conjunction with Reiki.