It is said that the magnetite was formed by a chemical process called thermal decomposition.据说这枚陨星是在热分解的化学过程中形成的。Iron ores of greatest economic interest contain magnetite and hematite.最具有经济价值的铁矿包括磁铁矿和赤铁矿.This is because ...
Associated minerals are mainly magnetite and ilmenite, subordinately pyrite and rarely chalcopyrite.主要伴生矿物为磁铁矿、钛铁矿, 少量黄铁矿和微量黄铜矿.Iron ores of greatest economic interest contain magnetite and hematite.最具有经济价值的铁矿包括磁铁矿和赤铁矿.T...