黑龙江柳毛石墨矿石的矿物学特征研究  

Mineralogical Characteristics of Liumao Graphite Deposit in Jixi County, Heilongjiang Province

作　　者：汪欣林 马彩凤 孙红娟[1,3] 彭同江 WANG Xinlin;MA Caifeng;SUN Hongjuan;PENG Tongjiang(Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle,Southwest University of Science and Technology,Mianyang 621010,China;Center of Forecasting and Analysis,Southwest University of Science and Technology,Mianyang 621010,China;Institute of Mnerals&Applicaton,Southwest University of Science and Technology,Mianyang 621010,China)

机构地区：[1]西南科技大学固体废物处理与资源化教育部重点实验室,四川绵阳621010 [2]西南科技大学分析测试中心,四川绵阳621010 [3]西南科技大学矿物材料及应用研究所,四川绵阳621010

出　　处：《矿产保护与利用》2019年第6期22-27,共6页Conservation and Utilization of Mineral Resources

基　　金：国家自然科学基金项目:石墨氧化过程中的晶体化学特征与变化机理(41772036)

摘　　要：为查明黑龙江柳毛石墨矿石的矿物学特征,采用XRF、XRD、Raman等测试分析手段对矿石的化学成分、矿物组成、晶体结构等进行了研究。结果表明,柳毛石墨矿石的主要化学组成除C外,还含有SiO2、CaO、Al2O3、Fe2O3、K2O、TiO2、BaO、V2O5等;脉石矿物主要有石英、云母(金云母、黑云母和绢云母),此外还含有长石(正长石和微斜长石)、蒙脱石、钙铝榴石及少量的伊利石、辉石、硅灰石等。石墨的晶胞参数a=0.244 4~0.247 3 nm,V=0.034 7~0.035 5 nm^3;石墨主要呈条带状与脉石矿物相间分布,少量石墨颗粒呈星点状分散在脉石矿物中。由提纯后石墨样品的Raman光谱得知,相同采样层位石墨样品的石墨化度差别较大,石墨晶体结构的完善程度不同,R(ID/IG)为0.07~0.21;不同采样层位,石墨样品的3R多型(Rh)的含量有所差别。In order to explore the mineralogical characteristics of liumao graphite ore in heilongjiang province, the minerals are characterized by means of XRF, XRD, Raman to explore the chemical composition, mineral composition, crystal structure. The results show that the main chemical composition of liumao graphite ore include C, SiO2, CaO, Al2O3, Fe2O3 and so on. The gangue minerals in the graphite ore samples mainly include quartz, mica(mainly phlogopite), feldspar(orthoclase and microcline), montmorillonite, grossular and a small amount of illite, pyroxene, grammite and so on. The crystal cell parameters of the graphite vary from 0.2444 nm to 0.2473 nm, and its crystal cell volumes vary from 0.0347 nm3 to 0.0355 nm^3. Graphite is mainly distributed in banded with gangue minerals, and a small amount of graphite particles embedded in the gangue minerals in a stellate shape. Raman spectroscopy analysis of graphite samples after dissociation and purification method showed that the graphitization degree of the graphite samples in same sampling layers is different, and the perfection degree of graphite crystal structure is different, with R(ID/IG) ranging from 0.07 to 0.21. The content of 3 R polymorphism(Rh) in graphite samples was different at different sampling layers.

关 键 词：柳毛 石墨矿石 矿物学特征 石墨化度 

分 类 号：P619.252[天文地球—矿床学]