Noah Webster Dictionary (1913 edition): Staurolite

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Noah Webster Dictionary (1913 edition): Staurolite


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(n.) A mineral of a brown to black color occurring in prismatic crystals, often twinned so as to form groups resembling a cross. It is a silicate of aluminia and iron, and is generally found imbedded in mica schist. Called also granatite, and grenatite.