generic name for a large and varied group of minerals, consisting of hydrous silicates in which the bases are alumina and the alkalies and alkaline earths; generally characterized by swelling up and f, tseoliidid - vett sisaldavate alumosilikaatide hulka kuuluv mineraalide rühm, milles katioonideks on pms. kaltsium ja naatrium, harvemini kaalium, baarium ja strontsium ning mõnikord magneesium ja man