Read Edit View history 铌铁矿 nítiěkuàng columbite Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 铌铁矿/ 鈮鐵礦 nítiěkuàng columbite columbite; a black mineral that is an ore of niobium and tantalum Edit Delete References Add reference classifier 铌铁矿/鈮鐵礦 → 座/座 Edit Delete
铌铁矿/ 鈮鐵礦 nítiěkuàng columbite columbite; a black mineral that is an ore of niobium and tantalum Edit Delete