致色元素含量变化对红宝石谱学及颜色表征的影响
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摘要
通过研究红宝石中Cr、Fe含量的变化对其吸收光谱以及颜色表征的具体影响,发现当Fe~(3+)/Cr~(3+)含量比接近0时,红宝石多呈紫红色,明度值中等偏高,且荧光强;当Fe~(3+)/Cr~(3+)含量比接近1时,红宝石紫色等杂色不明显,呈较为纯正的红色,明度值及荧光强度降低;当Fe~(3+)/Cr~(3+)含量比接近2时,红宝石明度值升高,颜色呈带粉色调的红色,荧光强度弱。基于以上研究成果,对今后深入开展红宝石产地鉴定以及品质分级的研究,提供了一定的科学理论依据。
The authors found that when the Fe~(3+)/Cr~(3+) content is close to 0, ruby is purple red, medium high lightness, and strong fluorescence;When the content of Fe~(3+)/Cr~(3+) is close to 1, ruby purple in the secondary color is not obvious, as the more pure red,and lightness and fluorescence intensity decreased;When the Fe~(3+)/Cr~(3+) content is close to 2, ruby lightness values increased, the color is pinkish red, the fluorescence intensity becomes weaker. Based on the above research results, this study provides a scientific basis for the further development of the identification of the origin and quality classification of the ruby.
The authors found that when the Fe~(3+)/Cr~(3+) content is close to 0, ruby is purple red, medium high lightness, and strong fluorescence;When the content of Fe~(3+)/Cr~(3+) is close to 1, ruby purple in the secondary color is not obvious, as the more pure red,and lightness and fluorescence intensity decreased;When the Fe~(3+)/Cr~(3+) content is close to 2, ruby lightness values increased, the color is pinkish red, the fluorescence intensity becomes weaker. Based on the above research results, this study provides a scientific basis for the further development of the identification of the origin and quality classification of the ruby.
引文
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[5]吕晓瑜,许如彭,汤红云,等.GRS“鸽血红”红宝石颜色分析案例及其启示[J].宝石与宝石学杂志,2012,14(4):44-49.
[6]A.S.马尔福宁.矿物物理学导论[M].北京:地质出版社,1984.
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[8]吕晓瑜,戴正之,戴珏,等.不同产地红宝石致色元素对其颜色表征的影响[J].宝石与宝石学杂志,2016,18(6):8-15.
[2]董琳玲.红宝石的色度学研究[D].昆明:昆明理工大学,2015.
[3]T.Calligaro,J-P.Poirot,G.Querre.Trace element fingerprinting of jewellery rubies by external beam PIXE[J].Beam interactions with Materials&Atoms.1999(150):628-634.
[4]黄欣,薛秦芳.云南哀牢山红宝石的微量元素分析[J].宝石与宝石学杂志,2008,10(2):38-41.
[5]吕晓瑜,许如彭,汤红云,等.GRS“鸽血红”红宝石颜色分析案例及其启示[J].宝石与宝石学杂志,2012,14(4):44-49.
[6]A.S.马尔福宁.矿物物理学导论[M].北京:地质出版社,1984.
[7]陈伟,罗红宇,张建洪,等.云南红宝石的激发和发光光谱[J].无机材料学报,1993,8(4):409-416.
[8]吕晓瑜,戴正之,戴珏,等.不同产地红宝石致色元素对其颜色表征的影响[J].宝石与宝石学杂志,2016,18(6):8-15.