Muscovite Civil War independent state in Moscow lands. Muscovite Civil War The Muscovite Civil War, or Great Feudal War, was a prolonged conflict that cast its shadow over the entire reign of Vasily II of Moscow (from 1425 to 1453). The two warring parties were Vasily II, the Grand Prince of Moscow, as one party, and his uncle, Yury Dmitrievich, the Prince of Zvenigorod, and the sons of Yuri Dmitrievich, Vasily Kosoy and Dmitry Shemyaka, as the other party. In the intermediate stage, the party of Yury conquered Moscow, but in the end, Vasily II regained his crown. It was the first civil
Muscovite and can be transparent or translucent. It is anisotropic and has high birefringence. Its crystal system is monoclinic. The green, chromium-rich variety is called fuchsite; mariposite is also a chromium-rich type of muscovite. Muscovite is the most common mica, found in granites, pegmatites, gneisses, and schists, and as a contact metamorphic rock or as a secondary mineral resulting from the alteration of topaz, feldspar, kyanite, etc. In pegmatites, it is often found in immense sheets that are commercially valuable. Muscovite is in demand for the manufacture of fireproofing and insulating materials and to some extent as a lubricant. The name