中国地质学会岩矿测试技术专业委员会、国家地质实验测试中心主办
高级检索

电子微探针-X射线衍射-扫描电镜研究老挝石岩石矿物学特征

,  ,  ,  ,  , 

文章导航 > 岩矿测试 > 2016 > 35(1): 56-61

上一篇

下一篇

王含, 周征宇, 钟倩, 刘瑞婷, 刘琦, 李英博. 电子微探针-X射线衍射-扫描电镜研究老挝石岩石矿物学特征[J]. 岩矿测试, 2016, 35(1): 56-61. doi: 10.15898/j.cnki.11-2131/td.2016.01.010
引用本文: 王含, 周征宇, 钟倩, 刘瑞婷, 刘琦, 李英博. 电子微探针-X射线衍射-扫描电镜研究老挝石岩石矿物学特征[J]. 岩矿测试, 2016, 35(1): 56-61. doi: 10.15898/j.cnki.11-2131/td.2016.01.010
shu
WANG Han, ZHOU Zheng-yu, ZHONG Qian, LIU Rui-ting, LIU Qi, LI Ying-bo. Study on Petrological and Mineralogical Characteristics of Laos Stone by EPMA-XRD-SEM[J]. Rock and Mineral Analysis, 2016, 35(1): 56-61. doi: 10.15898/j.cnki.11-2131/td.2016.01.010
Citation: WANG Han, ZHOU Zheng-yu, ZHONG Qian, LIU Rui-ting, LIU Qi, LI Ying-bo. Study on Petrological and Mineralogical Characteristics of Laos Stone by EPMA-XRD-SEM[J]. Rock and Mineral Analysis, 2016, 35(1): 56-61. doi: 10.15898/j.cnki.11-2131/td.2016.01.010
shu

电子微探针-X射线衍射-扫描电镜研究老挝石岩石矿物学特征

  • 1.

    同济大学海洋地质国家重点实验室, 上海 200092

  • 2.

    同济大学宝石及工艺材料实验室, 上海 200092

  • 3.

    上海宝石及材料工艺工程技术研究中心, 上海 200092

  • 4.

    国土资源部合肥矿产资源监督检测中心, 安徽 合肥 230000

  • 基金项目: 2012年度上海市科委项目(12DZ2251100);2015年度上海市科委项目(15DZ2283200)
详细信息
    作者简介: 王含, 硕士研究生, 主要从事宝石矿物学研究。E-mail:wanghan9481@163.com
    通讯作者: 周征宇, 博士, 主要从事岩石矿物学及矿床学研究。E-mail:adamszzyu@126.com

  • 中图分类号: P575.1;P575.5;P575.2

Study on Petrological and Mineralogical Characteristics of Laos Stone by EPMA-XRD-SEM

  • 1.

    State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China

  • 2.

    Laboratory of Gems & Technological Materials, Tongji University, Shanghai 200092, China

  • 3.

    Shanghai Engineering & Technology Research Center of Gem and Materials Technology, Shanghai 200092, China

  • 4.

    Hefei Mineral Resources Supervision and Testing Center, Ministry of Land and Resources, Hefei 230000, China

More Information

    摘要

  • 新近发现的老挝石因与寿山石多个品种高度相似, 给老挝石的科学定名和印材质量评价带来困难。本文采用常规宝玉石学测试结合电子微探针(EPMA)、X射线粉晶衍射(XRD)以及扫描电镜(SEM)等矿物谱学分析测试方法, 系统解析其化学成分、矿物组成及显微结构特征。结果表明, 老挝石由高岭石亚族矿物多型组成, 其中主要为高岭石、地开石及其过渡矿物, 少量为珍珠陶石。红、黄色老挝石颜色与铁含量呈正相关性, 表明铁元素可能为老挝石常见红、黄两色的主要致色原因。老挝石主要组成矿物晶体以不规则鳞片状或假六方片状为主, 其粒径越细小、镶嵌越紧密, 相应表现为质地细腻和篆刻工艺性能优异, 作为印章石的工艺价值也就越高。老挝石的密度(2.58~2.61 g/cm3)及折射率(1.559~1.570) 等常规宝石学特征均与地开石型寿山石较为一致, 其中颜色鲜艳、结构细腻者可作为优质的篆刻印材新资源。

    Since the newly-discovered Laos stones have highly similar appearances with Shoushan stones, it is difficult to correctly identify and evaluate them.Electron Microprobe(EPMA), X-ray Powder Diffraction(XRD) and Scanning Electron Microscopy(SEM) were used to study the chemical composition, mineral components, and microstructure of the Laos stone.Results show that the Laos stone is mainly composed of kaolinite, dickite and their transitional minerals with minor nacrite.There is a positive correlation between the red color and the yellow color and the amount of impurity element Fe, which indicates that these colors are possibly caused by Fe.Laos stone's crystals are mostly irregular platy or uninterrupted pseudo-hexagonal platy.The smaller size the crystals have, the worse porosity of its crystals, leading to the finer texture and better seal engraving experience and therefore a higher value.The density(2.58-2.61 g/cm3), refractive index(1.559-1.570) as well as other conventional gemological characteristics of Laos stone are similar to todickite-type Shoushan stones.It is suggested that Laos stone with bright color and fine texture should be used as a new source of high-quality seal stones.

    • HTML全文
  • 加载中

  • 图 1  样品X射线衍射图谱

    Figure 1. 

    下载: 全尺寸图片 幻灯片

    图 2  SEM图谱

    Figure 2. 

    下载: 全尺寸图片 幻灯片

    表 1  老挝石样品描述及常规宝石学测试数据

    Table 1.  Sample description and conventional gemological testing data of Laos stone

    测试项目 样品LS1样品LS2样品LS3样品LS4样品LS5样品LS6
    外观描述白色，具红色条纹。半透明，质地极细黄色，具白色风化皮。半透明，质地较细粉红色，具红色圆点状矿物弥散分布。半透明，质地较细浅粉红色，具黄色风化皮及红色愈合裂隙。微透明，质地较细黄白色，具白色风化皮。微透明(局部具透明条带)，质地极细红色，具红色愈合裂隙。半透明，质地较粗
    折射率1.5671.5641.5621.5621.5701.561
    密度(g/cm3)2.602.602.582.582.592.59
    下载: 导出CSV

    表 2  样品化学成分

    Table 2.  Chemical compositions of Laos stone samples

    元素 各样品中的元素含量(%)
    样品LS1样品LS2样品LS3样品LS4样品LS5样品LS6
    红色条纹部分浅黄色部分红色部分黄色风化皮部分深黄色部分红色愈合裂隙
    Al2O337.96238.38338.71638.77138.68135.197
    SiO246.08744.14043.70945.42343.98041.634
    Na2O0.0010.0110.0160.0020.0000.005
    K2O0.0080.0000.0250.0150.0090.023
    CaO0.0170.0160.0030.0120.0390.001
    MgO0.0000.0000.0000.0010.0020.002
    TiO20.0000.0380.0000.0000.0000.023
    TFeO0.0240.0010.0820.1070.4655.867
    Cr2O30.0540.0000.0000.0000.0310.000
    P2O50.0000.0190.0770.0000.0760.000
    MnO0.0000.0400.0490.0400.0000.000
    CuO0.0000.0000.0000.0070.0180.000
    总计84.15382.64982.67884.37883.30082.752
    下载: 导出CSV

    表 3  老挝石的晶体化学式

    Table 3.  Crystal-chemical formula of Laos stone samples

    样品编号老挝石的晶体化学式
    LS1(Al3.934K0.001Ca0.002Fe0.002 Cr0.004)3.943[Si4.060O10](OH)8
    LS2(Al3.958K0.001Ca0.004Fe0.034Cu0.001 Cr0.002)4.00[Si3.912Al0.090O10](OH)8
    LS3(Al3.945Na0.002Ca0.001Fe0.003)3.951[Si4.052O10](OH)8
    LS4(Al4.028Na0.004Ca0.002Mn0.004Cu0.002Cr0.001)4.041[Si3.968O10](OH)8
    LS5(Al3.990Na0.002Ca0.002 Mn0.003Ti0.003)4.00[Si3.912Al0.053O10](OH)8
    LS6(Al3.549 Na0.001 K0.003Fe0.445 Ti0.002)4.00[Si3.789Al0.219O10](OH)8
    下载: 导出CSV
    • 参考文献(17)
  • [1]

    http://www.cnki.com.cn/Article/CJFDTOTAL-ZIYU201202031.htm

    [2]

    http://www.cnki.com.cn/Article/CJFDTOTAL-BSHB199904009.htm

    [3]

    陈琼.寿山常见独石品种的岩石矿物学特征研究[D].上海:同济大学,2013.

    [4]

    杨雅秀,张乃娴编著.中国粘土矿物[M].北京:地质出版社,1994:21-22.

    Yang Y X,Zhang N X.Clay Minerals of China[M].Beijing:Geological Publishing House,1994:21-22.

    [5]

    赵珊茸,边秋娟,凌其聪编著.结晶学与矿物学[M].北京:地质出版社,2002:189-191.

    Zhao S R,Bian Q J,Ling Q C.Crystallography and Mineralogy[M].Beijing:Geological Publishing House,2002:189-191.

    [6]

    任磊夫编著.粘土矿物与粘土岩[M].北京:地质出版社,1992:76-77.

    Ren L F.Clay Minerals and Clay Rocks[M].Beijing:Geological Publishing House,1992:76-77.

    [7]

    范桂珍.内蒙巴林石的宝石矿物学研究[D].北京:中国地质大学(北京),2008.

    Fan G Z.Study on Gemology and Mineralogy of Balin Stone[D].Beijing:China University of Geosciences(Beijing),2008.

    [8]

    刘粤惠,刘平安编著.X射线衍射分析原理与应用[M].北京:化学工业出版社,2003:72-77.

    Liu Y H,Liu P A.Principles and Applications of X-ray Diffraction Analysis[M].Beijing:Chemical Industry Press,2003:72-77.

    [9]

    http://www.cnki.com.cn/Article/CJFDTOTAL-YKCS201001022.htm

    [10]

    http://www.cnki.com.cn/Article/CJFDTOTAL-BSHB201202003.htm

    [11]

    [12]

    doi: 10.1016/j.clay.2014.08.003

    [13]

    张蓓莉编著.系统宝石学[M].北京:地质出版社,2006:452-454.

    Zhang B L.Systematic Gemmology[M].Beijing:Geological Publishing House,2006:452-454.

    [14]

    http://www.cnki.com.cn/Article/CJFDTOTAL-GDZJ201506022.htm

    [15]

    http://www.cnki.com.cn/Article/CJFDTOTAL-BSHB201201004.htm

    [16]

    http://www.cnki.com.cn/Article/CJFDTOTAL-YKCS201202021.htm

    [17]

    • 相关文章
  • 施引文献
  • 资源附件(0)
  • 加载中

图(2)

表(3)

计量
  • 文章访问数:  1038
  • PDF下载数:  19
  • 施引文献:  0
出版历程
收稿日期:  2015-09-14
修回日期:  2016-01-06
录用日期:  2016-01-10
刊出日期:  2016-01-25

目录

    版权所有：中国地质调查局发展研究中心 copyright @2020
    返回