ferruginous concretions铁结核
ferruginous matrix含铁基质
Ferruginous Babbler锈色鸦鹛;锈色雅鹛
ferruginous body含铁小体
argillo ferruginous泥铁质的
ferruginous kaolin铁质高岭土
ferruginous hornstone铁质角岩
ferruginous limestone铁质石灰石;含铁石灰石
ferruginous spring铁质泉;含铁泉
ADJ（形容词） (of minerals, rocks, etc) containing iron (矿物质、岩石等)含铁的
a ferruginous clay