paragonite

[puh-rag-uh-nahyt]

noun Mineralogy.

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

Origin of paragonite

1840–50; < Greek parágōn misleading, leading aside (present participle of parágein; see paragoge) + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019