几种常见碳酸盐类矿物的鉴定方法  

Identification Methods for Several Common Carbonate Minerals

作　　者：张桂凤 田颖 李博 王艳龙 徐翠 ZHANG Gui-feng;TIAN Ying;LI Bo;WANG Yan-long;XU Cui(Hebei Regional Geological Survey Institute(Hebei Geotourism Research Center),Langfang 065000,China)

机构地区：[1]河北省区域地质调查院(河北省地学旅游研究中心),廊坊065000

出　　处：《价值工程》2023年第34期121-123,共3页Value Engineering

摘　　要：几种常见碳酸盐类矿物包括:方解石、白云石、菱铁矿、菱锰矿、菱镁矿、毒重石、氟碳铈矿。这几种矿物具有相同的碳酸根,化学成分较为复杂,且光学性质相近,准确鉴定它们具有一定难度。采用物理法与化学法进行常见碳酸盐类矿物的鉴定,总结出这几种常见碳酸盐类矿物各方面的性质特征,详细说明这几种矿物的鉴定技巧;以方解石和白云石为例,尝试一种新的碳酸盐类矿物的鉴定和定量分析方法,即电子探针全元素法。与常规的余量法和修正余量法进行对比分析,结果显示:这几种方法下白云石全元素和氧化物测试结果相近,而方解石测试中,新的方法获得的结果明显更为准确。Several common carbonate minerals include calcite,dolomite,siderite,rhodochrosite,magnesite,witherite,and bastnaesite.These minerals have the same carbonate radical,complex chemical composition,and similar optical properties,making it difficult to accurately identify them.Physical and chemical methods are used to identify common carbonate minerals,and the various properties and characteristics of these common carbonate minerals are summarized to provide detailed identification techniques for these minerals.Taking calcite and dolomite as examples,a new method for identifying and quantitatively analyzing carbonate minerals,namely the electron probe all element method,is attempted.Compared with the conventional residual method and the modified residual method,the results showed that the results of all element and oxide tests for dolomite were similar under these methods,while in the calcite test,the new method obtained significantly more accurate results.

关 键 词：碳酸盐类矿物 鉴定 常规方法 电子探针全元素法 定量分析 

分 类 号：P5[天文地球—地质学]