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Muscovite
WIKTIONARY
muscovite
Noun
  • A pale brown mineral of the mica group, being a basic potassium aluminosilicate with the chemical formula KAl2(Si3Al)O10(OH,F)2; used as an electrical insulator etc. mineralogy
Muscovite
Noun
  • An inhabitant or native of Muscovy or Moscow.
  • A Russian. archaic
Adjective
  • Of or relating to Muscovy or Moscow, or the people of these places.
  • Russian.