TERMIUM Plus®

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COMMON MICA [1 record]

Record 1 2011-08-01

English

Subject field(s)
  • Mineralogy
Universal entry(ies)
KAl2(Si3Al)O10(OH,F)2
formula, see observation
DEF

A colorless or yellowish monoclinic mineral of the mica group which consists of a hydrous silicate of aluminum and potassium.

OBS

muscovite: Named after the Russian Province, Muscovy. Paragonite is a sodium-bearing muscovite, and gilbertite is a fluorine-rich muscovite.

OBS

Chemical formula: KAl2(Si3Al)O10(OH,F)2

French

Domaine(s)
  • Minéralogie
Entrée(s) universelle(s)
KAl2(Si3Al)O10(OH,F)2
formula, see observation
DEF

Variété de mica blanc qui est un silicate hydraté naturel d'aluminium et de potassium [...]

CONT

La muscovite abonde en paillettes comme élément des granites; elle est commune aussi en lamelles empilées dans les pegmatites. Elle est utilisée industriellement comme isolant.

CONT

La muscovite se présente sous forme de cristaux monocliniques de forme pseudohexagonale, tabulaire selon la base, blanc verdâtre ou brun clair. C'est pourquoi on l'appelle aussi «mica blanc» par opposition à la biotite ou «mica noir» [...]

OBS

Formule chimique : KAl2(Si3Al)O10(OH,F)2

Spanish

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