1) gypsum-siderite deposit
石膏菱铁矿矿床
2) siderite deposit
菱铁矿矿床
1.
The Daxigou siderite deposit is located in the western part of the orefield and the Yindongzi silver-lead polymetallic deposit is located in the eastern part of the orefield.
大西沟-银洞子矿田由两个相邻的大型矿床组成,西部为大西沟菱铁矿矿床,东部为银洞子银-铅多金属矿床。
3) the iron-magnesite deposit
铁矿-菱镁矿矿床
5) iron-magnesite deposit
铁矿-菱镁矿床
1.
At the center of Huoqiu iron ore field,there lies Lilaozhuang iron-magnesite deposit,which occurs in the metamorphic rocks of Archean Huoqiu group,with ores hosted in the Mg-rich carbonate rocks.
李老庄铁矿-菱镁矿床置于霍邱铁矿田中部。
6) Specularite and siderite Ore
镜铁矿-菱铁矿矿石
补充资料:菱铁矿
菱铁矿 siderite 铁的碳酸盐矿物,成分为Fe[CO3]。经常有锰、镁等替代铁,形成锰菱铁矿、镁菱铁矿等变种。三方晶系,晶体呈菱面体,晶面往往弯曲;集合体呈粒状、块状或结核状。显晶质球粒状的称球菱铁矿;隐晶质凝胶状的称胶菱铁矿。菱铁矿一般呈灰白或黄白色,风化后呈褐色、褐黑色。莫氏硬度4,比重3.7~4.0,随成分中Mn和Mg含量的升高而降低。热液成因的菱铁矿常见于金属矿脉中;沉积成因的菱铁矿常见于页岩层、粘土层和煤层中。在氧化带易水解成褐铁矿,形成铁帽。菱铁矿大量聚集而且硫、磷等有害杂质的含量小于0.04%时,可作为铁矿石开采。
|
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条