Found 1 items, similar to Hydromica schist.
English → English (gcide) Definition: Hydromica schist Hydromica \Hy`dro*mi"ca\, n. [Hydro-, 1 + mica.] (Min.) A variety of potash mica containing water. It is less elastic than ordinary muscovite. [1913 Webster] Hydromica schist (Min.), a mica schist characterized by the presence of hydromica. It often has a silky luster and almost soapy feel. [1913 Webster]