山东金刚石晶体中氮片晶的分布特征及其表面微形貌

张健, 陈华, 陆太进, 丘志力, 魏然

张健, 陈华, 陆太进, 丘志力, 魏然. 山东金刚石晶体中氮片晶的分布特征及其表面微形貌[J]. 宝石和宝石学杂志, 2011, 13(3): 7-11,22.
引用本文: 张健, 陈华, 陆太进, 丘志力, 魏然. 山东金刚石晶体中氮片晶的分布特征及其表面微形貌[J]. 宝石和宝石学杂志, 2011, 13(3): 7-11,22.
ZHAN GJian, CHEN Hua, LU Tai-jin, QIU Zhi-li, WEI Ran. Distribution Characteristics and Surface Microtopography of Nitrogen Platelets in Diamond Crystals from Shandong Province, China[J]. Journal of Gems & Gemmology, 2011, 13(3): 7-11,22.
Citation: ZHAN GJian, CHEN Hua, LU Tai-jin, QIU Zhi-li, WEI Ran. Distribution Characteristics and Surface Microtopography of Nitrogen Platelets in Diamond Crystals from Shandong Province, China[J]. Journal of Gems & Gemmology, 2011, 13(3): 7-11,22.

山东金刚石晶体中氮片晶的分布特征及其表面微形貌

基金项目: 

国土资源部公益性行业科研专项(200811012)项目

详细信息
    作者简介:

    张健(1979-), 男, 助理研究员, 主要从事珠宝玉石研究及鉴定工作

  • 中图分类号: TS93

Distribution Characteristics and Surface Microtopography of Nitrogen Platelets in Diamond Crystals from Shandong Province, China

  • 摘要: 为研究山东蒙阴金伯利岩型金刚石晶体中氮片晶的分布特征, 采用红外光谱仪对116粒宝石级金刚石晶体样品中的氮片晶进行分析, 并采用微分干涉显微镜观察氮片晶在金刚石表面所具有的物理化学性质及其表面微细结构。结果表明, 80.2%的金刚石样品中具有氮片晶; 在个别浅褐色、八面体金刚石样品{111}面上观察到平行于[100]晶带方向的长条状蚀像, 这些蚀像相互平行, 大小不等。显微红外光谱对具长条状蚀像的金刚石样品{111}面的测试结果表明, 该类晶体均具有较强的氮片晶的吸收峰(1 359~1 375 cm-1)。综合浅褐色、八面体金刚石样品的红外光谱及其表面微形貌特征, 推测长条状蚀像是由氮片晶的出露点受优先选择性腐蚀而致。
    Abstract: In order to study the distribution characteristics of nitrogen platelets in diamond crystals from Shandong Province, China, 116 pieces of gem quality diamond crystal samples are investigated by using FTIR.The surface microstructures related to the nitrogen platelets are observed by differential interference microscope.The results show that 80.2% of the diamond samples contain nitrogen platelets.The stripe-like etch figures parallel to[100] directions on {111} planes are discovered on the surfaces of several brown octahedral diamond samples.These etch figures lie parallel to each other and vary in size.The microanalysis of the {111} planes show that there are stronger IR absorption peaks at 1 359-1 375 cm-1in the diamond samples, revealing the existence of huge quantities of nitrogen platelets.Judging from their appearances and IR spectra, the formation of the stripe-like etch figures parallel to[100]directions on{111}planes may result from selective etching of the platelets.
  • [1]

    Field J E.The properties of diamond[M].London:Academic Press, 1979.

    [2]

    Antonelli A, Nunes Ricardo.A stacking-fault based microscopic model for platelets in diamond[J].American Physical Society, APS March Meeting, 2005,(3):21-25.

    [3] 池际尚,路凤香,刘永顺,等.中国原生金刚石成矿地质条件研究[M].武汉:中国地质大学出版社, 1996.
    [4] 罗声宣,任喜荣,朱源,等.山东金刚石地质[M].济南:山东科学技术出版社, 1999.
    [5] 王萍,李国昌.山东蒙阴金刚石的晶体形态和晶面特征[J].矿产与地质, 1999, 13(4):253-256.
    [6]

    Davies G.Decomposing the IR absorption spectra of diamonds[J].Nature, 1981,(290):40-41.

    [7]

    Taylor W R, Jaques A L, Ridd M.Nitrogen-defect aggregation characteristics of some Australasian diamonds:Timetemperature constraints on the source regions of pipe and alluvial diamonds[J].American Mineralogist, 1990, 75(11-12):1 290-1 310.

    [8] (苏)奥尔洛夫.金刚石矿物学[M].北京:中国建筑工业出版社, 1977.
    [9] 徐柏森,杨静.实用电镜技术[M].南京:东南大学出版社, 2008.
    [10]

    Zaitsev A M.Optical properties of diamond[M].Berlin and Heidelbergn:Springer-Verlag, 2001.

    [11]

    Clark C D, Davey S T.One-phonon infrared absorption in diamond[J].Journal of Physics C:Solid State Physics, 1984, 17(6):1 127-1 140.

    [12]

    Bursill L A, Glaisher R W.Aggregation and dissolution of small and extended defect structures in type Ia diamond[J].American Mineralogist, 1985, 70(5-6):608-618.

    [13]

    Kiflawi I, Bruley J, Luyten W, et al.'Natural'and'manmade'platelets in type-Ia diamonds[J].Philosophical Magazine Part B, 1998, 78(3):299-314.

    [14]

    Evans T, Qi Zengdu.The kinetics of the aggregation of nitrogen atoms in diamond[J].Proceedings of the Royal Society of London.A, 1982, 381(1 780):159-178.

    [15]

    Lang A R.A proposed structure for nitrogen impurity platelets in diamond[J].Proceeding of the Physics Society, 1964, 84(6):871-876.

    [16]

    Berger S D, Pennycook S J.Detection of nitrogen at{100}platelets in diamond[J].Nature, 1982,(298):635-637.

    [17]

    Hutchison J L, Bursill L A.Fresnel fringe contrast of faceted voids within gem quality diamond[J].Journal of Microscopy, 1983,(131):63-66.

    [18]

    Bursill L A.Small and extended defect structures in gemquality type I diamonds[J].Endeavour, 1983, 7(2):70-77.

    [19]

    Brozel M R, Evans T, Stephenson R F.Partial dissociation of nitrogen aggregates in diamond by high temperature-high pressure treatments[J].Proceedings of the Royal Society of London.A, 1978, 361(1 704):109-127.

计量
  • 文章访问数:  102
  • HTML全文浏览量:  19
  • PDF下载量:  14
  • 被引次数: 0
出版历程
  • 收稿日期:  2011-04-11

目录

    /

    返回文章
    返回