taconiten. 鐵燧巖學術名詞鐵燧岩:地球科學矽鐵礦:地球科學1.鐵質燧石:海洋地質學2.矽鐵礦:海洋地質學英文釋義a variety of chert containing magnetite and hematite; mined as a low-grade iron ore