Laser & Optoelectronics Progress, Volume. 48, Issue 9, 93002(2011)
Spectroscopical Characteristics and Color-Causing Mechanism of Light Pink-Red Jadetite
X-ray fluorescence (XRF) spectrum, Raman spectrum and ultraviolet-visible (UV-VIS) absorption spectrum are used for analyzing the samples of light pink-red jadeites with white banded struture. It shows that this type of jadeite is assigned to jadeite jade, and it also has diagnostic Raman shifts located at 377, 700 and 1039 cm-1, which are respectively attributed to unsymmetrical bending, symmetrical bending and symmetrical strecthing of Si-O band; Light pink-red color of jadeite is attributed to Mn3+ located at the center of [MO6] octahedral in crystal structure, and d-d transitions of Mn3+ bring one wide absorption band centered at 520 nm. Additionally, there are many types of minor color-causing ions being in light pink-red jadeite, such as Fe3+, Mn2+ and Cr3+, and also their absorption bands are assigned.
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Liu Xueliang, Fan Jianliang, Guo Shouguo. Spectroscopical Characteristics and Color-Causing Mechanism of Light Pink-Red Jadetite[J]. Laser & Optoelectronics Progress, 2011, 48(9): 93002
Category: Spectroscopy
Received: Feb. 23, 2011
Accepted: --
Published Online: Jul. 10, 2011
The Author Email: Xueliang Liu (xlliu@ecust.edu.cn)