摘要
本文报告了用化学物相分析方法测定菱铁矿单矿物的化学组成。可用富菱铁矿矿石直接测得菱铁矿单矿物的化学组成,从而解决了难以挑选得到较纯的菱铁矿单矿物的困难。根据碳酸盐矿物中铁、镁、锰和钙等元素形成类质同象置换的几项主要参数,提出了菱铁矿应具有(Fe,Mg,Nn)CO_3的组成。对国内21个菱铁矿矿床产出的菱铁矿石进行研究,其中有三个应定名为锰菱铁矿,五个应定名为镁菱铁矿。方法对菱铁矿矿床的地质研究和菱铁矿石选矿试验中精矿品位的估算具有实用意义。
The extraction of siderite from other carbonate minerals by physical methods is difficult because their physical properties, such as specific gravity, optical property and crystal form, are very similar. The use of chemical phase analysis is suggested to attack the problem and a detailed procedure is elaborated. The chemical composition of siderites from 21 deposits is reported.
出处
《岩矿测试》
CAS
CSCD
北大核心
1989年第1期8-13,共6页
Rock and Mineral Analysis
