Anhydrite: The mineral anhydrite information and pictures
Anhydrite is not a common mineral, as it easily alters to the much more common mineral Gypsum from the addition of water into its chemical and Gypsum are chemically similar, except Gypsum has the addition of water. In fact, the name of Anhydrite is derived from "An" and "Hydra" meaning "without water" in reference to its similarity to Gypsum but the fact that it lacks ...