“…Pegmatite containing granite is used as raw material for industrial minerals in the production of feldspar and quartz for glass, glass fiber, ceramic and porcelain [6]. Chemical composition and structure of pegmatite rocks were studied and analyzed in several works [7]- [12]. Location of pegmatites are typically zoned and possess an inner quartz core, a symmetrical intermediate zone of coarse-grained muscovite, quartz, microcline and minor plagioclase, and an outer border zone of fine-to medium-grained microcline, quartz, plagioclase and muscovite [13].…”