Definition of "chamosite" []

• A monoclinic-prismatic mineral containing aluminum, hydrogen, iron, magnesium, oxygen, and silicon. (noun)

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• "Iron likewise combines with a considerable variety of substances other than oxygen; and some of these compounds, as for instance iron carbonate (siderite), iron silicate (chamosite, glauconite, etc.), and iron sulphide (pyrite), are locally mined as iron ores."