The Weathering of Mafic Chlorites in Soils (A Review)Recent results from the literature and some own data on chlorite weathering as derived from soil profile studies and laboratory work on artificial weathering are summarized. Among the two possible pathways of chlorite weathering ‐ vermiculitization after removing the hydroxide layer and complete dissolution ‐ vermiculitization appears to occur in rather “closed” systems not too acid and poor in organic compounds (e.g. saprolites). Complete dissolution, on the other hand, prevails in strong acid parts of the solum rich in organic matter, e.g. in podzol A horizons. Due to the presence of micaceous minerals in most profiles which also serve as a source for expandable mixed layer species the exact pathway of the chlorite during weathering cannot be followed up