limoniten. 褐鐵礦學術名詞褐鐵礦：地質學、地理學、化學術語、天文學、物理學、電機工程赭石質褐鐵礦：礦物學殘餘褐鐵礦：礦物學英文釋義a widely occurring iron oxide ore; a mixture of goethite and hematite and lepidocrocite