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缅甸淡紫色翡翠的颜色成因

Color Origin of Burmese Lavender Jadeite

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摘要

选取缅甸的白、淡粉紫和淡蓝紫3种颜色类型的翡翠样品,测试和分析了其元素和光吸收谱,并对其颜色成因进行了初步研究。结果表明,淡紫色翡翠样品含有少量的铁、锰和钛,而铬、钒、铜等元素的含量极低。除了Fe3+的吸收峰之外,淡粉紫色翡翠光谱中还存在峰值位于566 nm处的宽吸收带,淡蓝紫色翡翠光谱中存在峰值位于534 nm处的宽吸收带及长波侧625 nm处的肩带,因此,淡粉紫色和淡蓝紫色翡翠分别由Mn3+和Ti3+离子致色。

Abstract

Three kinds of white, pale-pink purple and light-blue purple jadeite samples from Myanmar are selected for the test and analysis of elements and optical absorption spectra, and their color origins are preliminary studied. The results show that the lavender jadeite samples contain a small amount of iron, manganese and titanium, while the contents of chromium, vanadium and copper are extremely low. In addition to the absorption peak of Fe3+, the pale-pink purple jadeite has a broad absorption band peaking at 566 nm, and the light-blue purple jadeite has a broad absorption band peaking at 534 nm and a shoulder band at 625 nm on the long-wave side. It is inferred that the pale-pink purple and light-blue purple jadeite are mainly colored by Mn3+ and Ti3+ ions, respectively.

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中图分类号:P574.1+1

DOI:10.3788/lop56.073001

所属栏目:光谱学

基金项目:上海建桥学院重点课程建设项目《宝石鉴定》(JXGG201715)

收稿日期:2018-08-21

修改稿日期:2018-10-27

网络出版日期:2018-10-30

作者单位    点击查看

吴晓:上海建桥学院珠宝学院, 上海 201306
包振宇:上海张铁军翡翠股份有限公司, 上海 200010
康燕:华东理工大学分析测试中心, 上海 200237
韩孝朕:上海建桥学院珠宝学院, 上海 201306
刘学良:华东理工大学宝石检测中心, 上海 200237
瞿明毅:上海张铁军翡翠股份有限公司, 上海 200010

联系人作者:韩孝朕(hanxz@gench.edu.cn)

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引用该论文

Wu Xiao,Bao Zhenyu,Kang Yan,Han Xiaozhen,Liu Xueliang,Qu Mingyi. Color Origin of Burmese Lavender Jadeite[J]. Laser & Optoelectronics Progress, 2019, 56(7): 073001

吴晓,包振宇,康燕,韩孝朕,刘学良,瞿明毅. 缅甸淡紫色翡翠的颜色成因[J]. 激光与光电子学进展, 2019, 56(7): 073001

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