1)kidney ore,肾状铁矿2)nodular ore,肾状赤铁矿3)Kidney iron ore;hematite,肾铁矿4)reniform ironstone,肾状铁岩5)kidney,肾状矿块6)banded iron ore,条状铁矿
用法和例句
癤uanlong Style” ironstone formation is an Early middle proterozoic reniform ironstone and oolitic ironstone formation which is one of the earliest ironstone discovered on the earth.