jarosite: Meaning and Definition of

jar•o•site

Pronunciation: ( jar'u-sīt", ju-rō'sīt), [key]
— n.
  1. a yellowish or brownish mineral, a hydrous sulfate of potassium and iron, KFe(SO)(OH), occurring in small crystals or large masses.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.