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paragonite

American  
[puh-rag-uh-nahyt] / pəˈræg əˌnaɪt /

noun

Mineralogy.
  1. a mica, similar in composition and appearance to muscovite but containing sodium instead of potassium.


Etymology

Origin of paragonite

1840–50; < Greek parágōn misleading, leading aside (present participle of parágein; paragoge ) + -ite 1