(ˈmaɪəˌnaɪt) n (Geological Science) a scapolite, Ca4Al6Si6O24CO3, that is isomorphous with marialite
meionite
meionite
[′mī·ə‚nīt] (mineralogy) 3CaAl2Si2O8·CaCO3 A scapolite mineral composed of calcium aluminosilicate and calcium carbonate; it is isomorphous with marialite.