Pegmatite rock is not used quite widely and has few uses such as:Minimally used as an architectural stone or as dimension stone quarrying to produce granite.Mining of huge sheets of micaMaking components of circuit boards, electronic devices, optical filters, detector windows, and other products.The gemstones established in pegmatite rock include aquamarine, apatite, kunzite, garnet, beryl, emerald, topaz, tungsten, zircon, and many others. Many are composed of large crystals and excellent quality, thus used as decorative stone products.A host rock for various mineral assemblages is a commercial source of numerous elements like tin, titanium, niobium, beryllium, amongst others.If solid and compelling might be cut into slabs, polished, and employed for constructing countertops, facades, or tiles.Used as a major component for making ceramics, glass and as filler for other products.