Description

Muscovite is found in igneous, metamorphic and sedimentary rocks. In igneous rocks it is a primary mineral that is especially common in granitic rocks. In granite pegmatite, muscovite is often found in large crystals with a pseudo hexagonal outline. These crystals are called “books” because they can be split into paper-thin sheets. Muscovite rarely occurs in igneous rocks of intermediate, mafic and ultramafic composition.

Muscovite can form during the regional metamorphism of argillaceous rocks. The heat and pressure of metamorphism transforms clay minerals into tiny grains of mica which enlarge as metamorphism progresses. Muscovite is a very common mineral and particularly widespread. It is used as an excellent electrical and thermal insulator and cosmetics industry, Often used in the manufacture of rubber, wallpaper, plastics, paints, ceramics, in paper industry, for production of plasters and roof coverings. They possess excellent characteristics of high heat conductivity, super tensile strength, as well as, low bulk density. The compounds are non-combustible, free flowing, chemically inert, resilient and non-abrasive.