Micas, picked up along the edges from the center of fore granite pegmatites were studied from Ilmen reserve (Ural, Russia), using the optical, X-ray, microprobe (SEM and ТЕМ) methods. Crystallochemical formula was calculated on bulk chemical composition, SEM and ТЕМ analyses, taking into account X-ray and optical data. This complex of analyses allows the dioctahedral mica with heightened Fe content carry on muscovite 2Mt and celadonite 1M, trioctahedral mica - on flogopyte 2M1 and annite Md and the Li-Fe mica on trilitionite 1M, 3T. As a result the homogenous 2M1 mica with utmost on board and heterogeneous 1M and 3T polytypes on center of pegmatites were exposured.