Adv Search
Volume 5 Issue 4
Dec.  2003
Turn off MathJax
Article Contents
Abstract
References
LI Li-ping, YE Dong. Role of Cr and V in Colour Change Effect of Gemstones[J]. Journal of Gems & Gemmology, 2003, 5(4): 17-21.
Citation: LI Li-ping, YE Dong. Role of Cr and V in Colour Change Effect of Gemstones[J]. Journal of Gems & Gemmology, 2003, 5(4): 17-21.
shu

Role of Cr and V in Colour Change Effect of Gemstones

  • 1. Gemmological Institute, China University of Geosciences, Wuhan 430074, China;

  • 2. Department of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China

More Information
  • Received Date: August 19, 2003
    Graphical Abstract
    • Abstract
  • Modern testing techniques have been applied to various gemstones that show colour change effect. Based on crystal field theory, the mechanism of colour change effect and the role of Cr and V are discussed. Colour change effect is the result of combination of light source with selective absorption of colouring ion to visible light. The spectral characteristic of a colour-change gemstone should show balanced absorption in red region and green region.
    • FullText(HTML)
    • References (6)
  • [1]
    G belin E,Schmetzer K.Gemstones with alexandrite effect[J]. Gems & Gemology, 1982,18(4):197-203.
    [2]
    JohnDRouse.Garnet[M].London: Butterworths, 1986.
    [3]
    谢先德.中国宝玉石矿物物理学[M]. 广州:广东科技出版社,1999.
    [4]
    Nassau K.The Physicsand Chemistry of Colour[M].New York: Wiley,1981.
    [5]
    A S马尔福宁.矿物物理学导论[M]. 李高山译.北京:地质出版社,1984.
    [6]
    陈丰,林传易,张惠芬.矿物物理学概论[M].北京:科学出版社,1995.
    • Related Articles

Catalog

    Get Citation
    PDF
    XML

    Article Metrics

    Article views (20) PDF downloads (1) 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