muscovite

In 1850 from Muscovy glass +‎ -ite, from the province Muscovy in Russia. Named by James Dwight Dana.^[1]

muscovite (countable and uncountable, plural muscovites)

1. (mineralogy) 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.
   • 2009, James S. Monroe, Reed Wicander, The Changing Earth: Exploring Geology and Evolution, 5th edition, Belmont, Calif.: Brooks/Cole, →ISBN, page 76:

     Do you enjoy the amber glow seen through the isinglass window of a wood stove? […] Muscovite (colorless, white, or pale red or green) mica is also common […]; it was named for Moskva (Moscow), where much of Europe's mica was mined. Isinglass, mentioned above, consists of thin, transparent sheets of muscovite.

• David Barthelmy (1997–2025), “Muscovite”, in Webmineral Mineralogy Database.
• “muscovite”, in Mindat.org‎^[1], Hudson Institute of Mineralogy, 2000–2025.

• IPA^(key): /mys.kɔ.vit/

• Audio (France (Vosges)):

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muscovite f (plural muscovites)

1. (mineralogy) muscovite

• → Romanian: muscovit

• IPA^(key): /mus.koˈvi.te/
• Rhymes: -ite
• Hyphenation: mu‧sco‧vì‧te

muscovite f (plural muscoviti)

1. (mineralogy) muscovite