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muscovite
noun
a very common, light-colored, soft mica, hydrous potassium aluminum silicate, KAl(AlSi)O(OH), used as an electrical or thermal insulator
noun
- a person born or living in Muscovy
- a Russian
- a person born or living in Moscow
adjective
- of Muscovy
- Russian
- of Moscow
See muscovite in American Heritage Dictionary 4
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