Iron carbonate, FeCO3, as is siderite. always brown.

与菱铁矿一样，是碳酸亚铁FeCO3。褐色。

youdao

Too much CO2, and magnetite can't form, whereas the opposite is true for siderite.

如果大气中存在的二氧化碳太多，磁铁矿则无法形成；

youdao

Too much CO2, and magnetite can't form, whereas the opposite is true for siderite.

如果大气中存在的二氧化碳太多，磁铁矿则无法形成；

youdao