1.【矿】铁燧石,矽铁矿
1.a banded iron formation consisting of layers of the iron oxides magnetite and haematite that may be extracted from pulverized rock using a magnet
1.Common names for BIF include taconite (in North America), jaspilite (in Australia) and itabirite (in Brazil) BIF
的通常名称包括铁燧岩(北美),碧玉铁质岩(澳大利亚)和铁英岩(巴西)