磁铁矿是一个极为常见而又容易分离的矿物,它作为付矿物含于不同成分和成因的岩石内。磁铁矿经过千变万化的变质条件仍能保存下来,但同时它又是这些条件灵敏的指示矿物,因为磁铁矿所含有的其它类质同象元素在很大程度上取决于温度。在研究变质岩中元素分布的情况时,有些作者指出,对于变质作用,氧化矿物要比硅酸盐矿物具有更高的灵敏性。 Magnetite is a very common and easily separated mineral that acts as a deposit for rocks that contain minerals of different composition and origin. Magnetite can survive the ever-changing metamorphic conditions, but at the same time it is again the sensitive indicator of these conditions, since the other isomorphic elements contained in the magnetite depend largely on the temperature. In studying the elemental distribution in metamorphic rocks, some authors have suggested that oxidized minerals are more sensitive to metamorphism than silicate minerals.