Szukana fraza: [Abstract = "The object of studies was the composition of clay minerals in post\-mining groundsof the Konin Brown Coal Mine as well as of soils developing from this parent material under the influence of farming reclamation. The performed investigations revealed that the main clay minerals in the analysed materials included\: smectite and illite with some other mixedpackage minerals such as\: illite\-smectite, kaolinite, chlorite, calcite, quartz and feldspar."]