muscovite - significado y definición. Qué es muscovite
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Qué (quién) es muscovite - definición

TRUE MICA, PHYLLOSILICATE MINERAL; POLYTYPES: 1M, 2A, 2M2, 3T
White mica; Potassium aluminosilicate; Muscovite mica; Common mica; Potash mica; Moscovite; Muscovy-glass; Muscovy glass
  • Muscovite window

Muscovite         
·noun Common potash mica. ·see Mica.
II. Muscovite ·noun A native or inhabitant of Muscovy or ancient Russia; hence, a Russian.
Muscovite         
['m?sk?v??t]
¦ noun a native or citizen of Moscow.
?archaic a Russian.
¦ adjective relating to Moscow.
?archaic relating to Russia.
muscovite         
['m?sk?v??t]
¦ noun a silver-grey form of mica occurring in many rocks.
Origin
C19: from obs. Muscovy glass (in the same sense) + -ite1.

Wikipedia

Muscovite

Muscovite (also known as common mica, isinglass, or potash mica) is a hydrated phyllosilicate mineral of aluminium and potassium with formula KAl2(AlSi3O10)(F,OH)2, or (KF)2(Al2O3)3(SiO2)6(H2O). It has a highly perfect basal cleavage yielding remarkably thin laminae (sheets) which are often highly elastic. Sheets of muscovite 5 meters × 3 meters (16.5 feet × 10 feet) have been found in Nellore, India.

Muscovite has a Mohs hardness of 2–2.25 parallel to the [001] face, 4 perpendicular to the [001] and a specific gravity of 2.76–3. It can be colorless or tinted through grays, browns, greens, yellows, or (rarely) violet or red, 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. It is characteristic of peraluminous rock, in which the content of aluminum is relatively high. 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.

Ejemplos de uso de muscovite
1. Police identified the assailant as Alexander Koptsev, a Muscovite.
2. Alexei Bayer, a native Muscovite, is a Moscow–based economist. «
3. "She‘s very focused," said the 24–year–old Muscovite.
4. But because Nina was not a Muscovite, she could not receive them here.
5. A well–bred 1'th–century Muscovite would faint listening to us today.