Adv Search
Volume 7 Issue 4
Dec.  2005
Turn off MathJax
Article Contents
Abstract
References
SHI Guang-hai, CUI Wen-yuan. Desalinization of Chromium within Myanmar Jadeite Jade and Implications[J]. Journal of Gems & Gemmology, 2005, 7(4): 7-12.
Citation: SHI Guang-hai, CUI Wen-yuan. Desalinization of Chromium within Myanmar Jadeite Jade and Implications[J]. Journal of Gems & Gemmology, 2005, 7(4): 7-12.
shu

Desalinization of Chromium within Myanmar Jadeite Jade and Implications

  • 1. China University of Geosciences, Beijing 100083, China;

  • 2. School of Earth and Space Sciences, Peking University, Beijing 100871, China

More Information
  • Received Date: September 26, 2005
    Graphical Abstract
    • Abstract
  • This paper presents a new viewpoint that there exists the desalinization of chromium within the Myanmar jadeite jade,which plays an important role in genesis and evolution of green colour of the jadeite jade.The desalinization of chromium within the Myanmar jadeite jade is divided into four stages:(1) transformation from chromite to kosmochlor,which is characterized by the metasomatic reaction,forming corona texture or granoblastic texture;(2) from kosmochlor to chromian jadeite,which is regarded as the replacement reaction,accompanied by metasomatism;(3) from chromian jadeite to low chromium-bearing jadeite([ w(Cr2O3)=±0.3%]),which is the replacement reaction accompanied by recrystallization induced by deformation, and(4) from chromium-bearing jadeite to lower chromium-bearing jadeite,which is essentially the further evolution of the stage 3.The desalinization of chromium within the Myanmar jadeite jade is influenced by variety of neighbor minerals,the way and intensity of deformation/metamorphism induced by shear stress, p/t condition and fluids.Using the desalinization of chromium,the feature that green colour in jadeite jade has special shape can be interpreted,and how and what the green colour changes can be understood.
    • FullText(HTML)
    • References (30)
  • [1]
    Harlow G E,Olds E P.Observations on terrestrial ureyiteand ureyitic pyroxene[J]. American Mineralogist,1987,72(1):126-136.
    [2]
    Htein W,Naing A M.Mineral and chemical composition ofjadeite jade of Myanmar[J]. Journal of Gemmology,1994,24(4):269-276.
    [3]
    Htein W,Naing A M.Studies on ureyite,jadeite and associ-ated minerals in jade of Myanmar[J]. Journal of Gemmolo-gy,1995,24(5):315-320.
    [4]
    Ouyang Q M.A terrestrial source of ureyite[J]. AmericanMineralogist,1984,69(12):1180-1183.
    [5]
    Ouyang Q M.Microscopic studies of Burmese jadeite jade[J]. Journal of Gemmology,1993,23(5):278-283.
    [6]
    亓利剑,罗永安,吴舜田,等.缅甸“铁龙生”玉特性与归属[J]. 宝石和宝石学杂志,1999,1(4):23-27.
    [7]
    亓利剑,郑曙,裴景成.翡翠中钠铬辉石后成合晶与成分变异环带机理[J]. 宝石和宝石学杂志,1999,1(1):13—18.
    [8]
    Shi G H,Cui W Y,Tropper P,et al.The petrology of a com-plex sodic and sodic-calcic amphibole association and its implica-tions for the metasomatic processes in the jadeitite area in north-western Myanmar,formerly Burma[J]. Contributions to Miner-alogy and Petrology,2003,145(3):355—367.
    [9]
    Shi G H,St ckhert B,Cui W Y.Kosmochlor and chromianjadeite aggregates from the Myanmar area[J]. MineralogicalMagazine,2005,69(6)(出版中).
    [10]
    Harder H.Trace elements as coloring agents in jadeites[J]. Journal of Gemmology,1995,24(7):508-511.
    [11]
    Ikeda K,Yagi K.Synthesis of kosmochlor and phase equi-libria in join CaMgSi2O6-NaCrSi2O6[J]. Contributions toMineralogy and Petrology,1972,36(1):63-72.
    [12]
    Mével C,Kiénast J R.Jadeite-kosmochlor solid solution andchromite sodic amphiboles in jadeitites and associated rocksfrom Tawmaw(Burma)[J]. Bulletin de Mineralogie,1986,109(6):617-633.
    [13]
    Harlow G E,Sorensen S S.Jade(nephrite and jadeitite)and serpentinite:metasomatic connections[J]. Interna-tional Geology Review,2005,47(2):113-146.
    [14]
    Johnson C A,Harlow G E.Guatemala jadeitites and albi-tites were formed by deuterium-rich serpentinizing fluidsdeep with in a subduction channel[J]. Geology,1999,27(7):629-632.
    [15]
    Harlow G E.Jadeitites,albitites and related rocks from theMotagua fault zone,Guatemala[J]. Journal of Metamor-phic Geology,1994,12(1):49-68.
    [16]
    施光海,崔文元,王长秋,等.缅甸帕敢地区硬玉岩中流体包裹体[J]. 科学通报,2000,45(13):1433—1437.
    [17]
    Shi G H,Cui W Y,Wang C Q,et al.The fluid inclusionsin jadeitite from Pharkant area,Myanmar[J]. Chinese Sci-ence Bulletin,2000,45(20):1896-1900.
    [18]
    崔文元,施光海,林颖.钠铬辉石玉及相关闪石玉(岩石)的研究[J],宝石和宝石学杂志,1999,1(4):16-21.
    [19]
    施光海,崔文元,杨富绪.缅甸翡翠中多相包裹体的发现及其意义[J]. 中国宝石,2000,(3):139-143.
    [20]
    Shi G H,Tropper P,Cui W Y,et al.Methane(CH4)-bearing fluid inclusions in Myanmar jadeites[J]. Geochem-ical Journal,2005,39(6):503—516.
    [21]
    施光海,崔文元.缅甸硬玉岩的结构与显微组构:硬玉质翡翠的成因意义[J]. 宝石和宝石学杂志,2004,6(3):8-11.
    [22]
    Coleman R G.Jadeite deposit of the Clear Creek area,NewIdri District,San Benito County,California[J]. Journal ofPetrology,1961,2(2):209—247.
    [23]
    Barnes S J,Roeder P L.The range of spinel compositions interrestrial mafic and ultramafic rocks[J]. Journal of Pe-trology,2001,42(12):2279-2302.
    [24]
    Stünitz H.Syndeformational recrystallization:dynamic orcompositionally induced[J]. Contributions to Mineralogyand Petrology,1998,131(2):219-236.
    [25]
    Orzol J,Trepmann C,St ckhert B,Shi G H.Critical shearstress for mechanical twinning of jadeite——an experimen-tal study[J]. Tectonophysics,2003,372(3):135-145.
    [26]
    Trepmann C,St ckhert B.Mechanical twinning of jadeite:an indication of synseismic loading beneath the brittleplastictransition[J]. International Journal of Earth Sciences,2001,90(1):4-14.
    [27]
    Morley C K.Nested strike-slip duplexes,and other evi-dence for Late Cretaceous—Palaeogene transpressional tec-tonics before and during India Eurasia collision,in Thai-land,Myanmar and Malaysia[J]. Journal of the GeologicalSociety,2004,161(5):799-812.
    [28]
    Bertrand G,Rangin C.Tectonics of the western margin ofthe Shan plateau(central Myanmar):implication for theIndia Indochina oblique convergence since the Oligocene[J]. Journal of Asian Earth Sciences,2003,21(10):1139-1157.
    [29]
    Paterson M S.A theory for granular flow accommodated bymaterial transfer via an intergranular fluid[J]. Tectono-physics,1995,245(3):135-151.
    [30]
    Wintsch R P,Christoffersen R,Kronenberg A K.Fluid-rock reaction weakening of fault zone[J]. Journal of Geo-physical Research,1995,100(B7):13021-13032.
    • Related Articles

Catalog

    Get Citation
    PDF
    XML

    Article Metrics

    Article views (32) PDF downloads (4) Cited by()
    Related
    Email alert RSS
    二维码

    Supported by Beijing Renhe Information Technology Co., Ltd.  Baidu Analytics

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return