The Encyclopedia Americana (1920)/Anthosiderite

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ANTHOSIDERITE, ăn-thŏ-sĭd'ėr-īt (from the Greek anthos, “a flower,” and siderites, “iron”), a mineral related to chloropal, occurring in fibrous tufts and sometimes in feathery forms resembling flowers. It is harder and heavier than chloropal, is usually yellowish in color, and has the composition 2Fe2O39SiO22H2O. It is found in Brazil.