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Meaning of glauconite

glau•co•nite

Pronunciation: (glô'ku-nīt"), [key]
— n.
  1. a greenish micaceous mineral consisting essentially of a hydrous silicate of potassium, aluminum, and iron and occurring in greensand, clays, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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