/mus"keuh vuyt'/, n.1. a native or inhabitant of Moscow.2. a native or inhabitant of the Grand Duchy of Muscovy.3. (l.c.) Mineral. common light-colored mica, essentially KAl3Si3O10(OH)2, used as an electrical insulator.4. Archaic. a Russian.adj.5. of, pertaining to, or characteristic of Moscow, Muscovy, or the Muscovites.[1545-55; MUSCOV(Y) + -ITE1]
* * *or common mica or potash mica or isinglassAbundant silicate mineral that contains potassium and aluminum and has a layered atomic structure.It is the most common member of the mica group. Because it occurs in thin, transparent sheets, it was used in Russia for window panes and became known as Muscovy glass (isinglass), hence its name. Muscovite is usually colourless but may be light gray, brown, pale green, or rose red. Its low iron content makes it a good electrical and thermal insulator.
* * *▪ mineralalso called Common Mica, Potash Mica, or Isinglass,an abundant silicate mineral that contains potassium and aluminum. Muscovite is the most common member of the mica group. Because it occurs in thin, transparent sheets, it was used in Russia for window panes and became known as Muscovy glass (isinglass), hence its name. Muscovite typically occurs in metamorphic rocks, particularly gneisses and schists, where it forms crystals and plates. It also occurs in granites, in fine-grained sediments, and in some highly siliceous rocks. Large crystals of muscovite are often found in veins and pegmatites. One crystal mined near Nellore, India, measured 3 m (10 feet) in diameter and 5 m (15 feet) in length and weighed 85 tons.Muscovite is usually colourless but may be light grey, brown, pale green, or rose red in colour. The crystals are tabular with a hexagonal or pseudo-hexagonal outline; they are commonly lamellar and occur in aggregates. Muscovite is economically important because its low iron content makes it a good electrical and thermal insulator. Fine-grained muscovite is called sericite, or white mica. For chemical formula and detailed physical properties, see mica (table).
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Muscovite — Catégorie IX : silicates Muscovite; sud est de Minas Gerais, Brésil … Wikipédia en Français
muscovite — * * * ● muscovite nom féminin (anglais Muscovy, Moscovie) Variété de mica blanc qui est un silicate hydraté naturel d aluminium et de potassium, que l on rencontre dans les granites et les micaschistes. (Elle est utilisée industriellement comme… … Encyclopédie Universelle
Muscovite — 1. noun 1) москвич(ка) 2) obs. русский; русская 2. adj. obs.русский … Англо-русский словарь Мюллера
muscovite — 1> мин. калиевая слюда, мусковит … Новый большой англо-русский словарь
muscovite — 1> москвич; москвичка 2> ист. житель Московии 3> ист. русский; русская 4> ист. русский … Новый большой англо-русский словарь
Muscovite — For other uses, see Muscovite (disambiguation). Muscovite Muscovite with albite from Doce valley, Minas Gerais, Brazil (dimensions: 6×5.3×3.9 cm) General Catego … Wikipedia
Muscovite — I noun a resident of Moscow • Hypernyms: ↑Russian II adjective of or relating to the residents of Moscow Muscovite street dealers * * * I. ˈməskəˌvīt, usu īd.+V no … Useful english dictionary
muscovite — noun a colorless or pale brown mica with potassium • Hypernyms: ↑mica, ↑isinglass • Hyponyms: ↑damourite * * * I. ˈməskəˌvīt, usu īd.+V noun also mos·co·vite … Useful english dictionary
muscovite — Mica Mi ca, n. [L. mica crumb, grain, particle; cf. F. mica.] (Min.) The name of a group of minerals characterized by highly perfect cleavage, so that they readily separate into very thin leaves, more or less elastic. They differ widely in… … The Collaborative International Dictionary of English
muscovite — noun Etymology: Medieval Latin or New Latin Muscovia, Moscovia Moscow Date: 1535 1. capitalized a. a native or resident of the ancient principality of Moscow or of the city of Moscow b. Russian 2. [muscovy (glass)] a colorless to pale brown form… … New Collegiate Dictionary