| 光谱学与光谱分析 |
|
|
|
|
|
| Gemology and Spectra Characterization of Gem Garnet from Muling City, Heilongjiang Province |
| CHEN Tao, LIU Yun-gui, YIN Zuo-wei*, LIU Ni |
| Gemmological Institute, China University of Geosciences, Wuhan 430074, China |
|
|
|
|
Abstract Cenozoic basalts gem-garnets from Muling City, Heilongjiang Province were studied by using standard gemological methods, electron microprobe, Raman spectroscopy, infrared spectroscopy, and ultraviolet-visible spectroscopy to obtain the gemology and spectra characterization. Chemical composition analysis indicates that the garnets are pyropes with some impurity element Fe, Ca, Mn, Cr, and Ti. The average chemical structure formula of the gem-garnet is (Mn0.022Ca0.455, Fe2+0.720, Mg1.793)∑=2.990(Ti0.003Cr0.009 Fe3+0.062 Al1.951)∑=2.025(SiO4)3. Roman spectrum analysis suggests that there are mixed-phases in the garnet, which can be shown by the Roman shift which is caused by bridging oxygen vibration of garnet. The Roman shifts of bridging oxygen bending vibration of pyrope are at 560 cm-1 (A1g), and 641 cm-1 (Eg+F2g), while the Roman shifts of bridging oxygen bending vibration caused by Eg+F2g of almandine and grossular are at 507 and 486 cm-1. IR functional group area indicates that the pyropes have no molecules water, but seldom pyropes have a little structure water, which forms three stepped weak absorption peaks at 3 585, 3 566 and 3 544 cm-1 respectively. Most pyropes are brown-red, which is caused by electronic transitions of impurity ions Cr3+, Fe3+ and Mn2+. UV-Vis spectra show that absorption peaks caused by electron transition of Fe3+ are at 570, 521 and 502 nm, while absorption peaks caused by electron transition of Mn2+ are at 460 and 430 nm, and absorption peaks caused by electron transition of Cr3+ are at 690 and 367 nm.
|
|
Received: 2013-05-07
Accepted: 2013-08-15
|
|
|
|
Corresponding Authors:
YIN Zuo-wei
E-mail: yinzuowei1025@163.com
|
|
[1] ZHANG Bei-li(张蓓莉). Systematic Gemology(系统宝石学). Beijing: Geology Press(北京: 地质出版社), 2008. 270.
[2] Qiu Z L, Yang J H, Yang Y H, et al. Acta Petrologica Sinica, 2007, 23(2): 481.
[3] Chen T, Ai H, Yang M X, et al. Gems & Gemology, 2011, 47(1): 36.
[4] Chen T, Yang M X, Ai H. Gems & Gemology, 2011, 47(2): 136.
[5] HE Mou-chun, HONG Bin, Lü Xin-biao(何谋春, 洪 斌, 吕新彪). Chinese Journal of Light Scattering (光散射学报), 2002, 14(2): 121.
[6] FAN Jian-liang, LIU Xue-liang, GUO Shou-guo(范建良, 刘学良, 郭守国). Applied Laser(应用激光), 2007, 27(4): 310.
[7] Bell D R, Rossman G R. Science, 1992(225): 1391.
[8] Su W, Gao J, Xiong X M. Acta Petrologica Sinica, 2006, 22(5): 1381.
[9] ZHANG Jun-feng, JIN Zhen-min, Green II H W, et al(章军锋, 金振民，Green II H W, 等). Chinese Science Bulletin(科学通报), 2000, 45(17): 1889.
[10] HE Xue-mei, Lü Lin-su(何雪梅, 吕林素). Earth Science Frontiers(地学前缘), 2007, 14(5): 246.
[11] Geiger C A, Stahl A, Rossman G R. European Journal of Mineralogy, 2000, 12(2): 259. |
| [1] |
XU Ya-fen1, LIU Xian-yu1*, CHEN Quan-li2, XU Chang3. Study on Mineral Composition and Spectral Characteristics of “Middle East Turquoise”[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(09): 2862-2867. |
| [2] |
YU Lian-gang1, LIU Xian-yu2*, CHEN Quan-li3. Gemstone Mineralogical and Spectroscopic Characteristics of
Quartzose Jade (“Mianlv Yu”)[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(08): 2543-2549. |
| [3] |
LI Ming1, HONG Han-lie2. Gemological and Spectrographic Characteristics of Light-Green Tourmaline of Afghanistan[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(07): 2195-2201. |
| [4] |
ZHOU Wu-bang1, QIN Dong-mei2, WANG Hao-tian1, CHEN Tao1, WANG Chao-wen1*. The Gemological, Mineralogical, and Spectral Characteristics of Indian Longdan Stone[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(06): 1895-1899. |
| [5] |
FU Wan-lu1, 2, LU Hao3*, CHAI Jun4, SUN Zuo-yu1. Spectroscopic Characteristics of Longxi Nephrite From Sichuan and Its Color Genesis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(05): 1408-1412. |
| [6] |
MAO Xiao-tian1, CHEN Chang2, YIN Zuo-wei1*, WANG Zi-min1. Spectra Characterization of Cr-Grossular (Tsavorite) With “Frogspawn” Color Zoning From Canada[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(02): 520-525. |
| [7] |
BAO Pei-jin1, CHEN Quan-li1, 2*, WU Yan-han1, LI Xuan1, ZHAO An-di1. Spectroscopy Characteristics of Emerald From Swat Valley, Pakistan[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(01): 213-219. |
| [8] |
CAO Su-qiao1, DAI Hui1*, WANG Chao-wen2, YU Lu1, ZUO Rui1, WANG Feng1, GUO Lian-qiao1. Gemological and Spectral Characteristics of Emeralds From Swat Valley, Pakistan[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(11): 3533-3540. |
| [9] |
JIA Fu-dong1, 2, ZHANG Chang-qing1*, HUA Zhi-xin3, LOU De-bo1, LI Bao-long1, SUN Jia1. Identification Characteristics, Composition and Genesis of Euclase in Mahuaping Tungsten-Beryllium Polymetallic Deposit in Yunnan Province, Southwest China[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(10): 3185-3192. |
| [10] |
XU Ya-ting, CHEN Tao*. Comparison on the Gemological and Spectral Characteristics of Laos Peach-Blossom Stone and Gaoshan Peach-Blossom Stone[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(09): 2901-2907. |
| [11] |
LU Zhi-yun, HE Xue-mei*, GUO Qing-feng. Color and Genesis of Beihong Agate and Its Spectroscopic Characteristics[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(08): 2531-2537. |
| [12] |
XI Jia-xin1,2, CHEN Tao1*. Mineralogy and Spectra Study on Dougeng Stone from Shoushan, Fujian Province[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(04): 1179-1185. |
| [13] |
ZHUO Cheng-cheng, CHEN Tao*. Study on Mineral Composition and Spectroscopy Characteristics of Four Kinds of Red Qingtian Stones[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(10): 3232-3236. |
| [14] |
DONG Xue1, QI Li-jian2, ZHOU Zheng-yu2, SUN Dui-xiong1*. Spectral Characteristics and Application of Synthetic Hydrothermal Red Beryl[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(02): 517-521. |
| [15] |
SHAO Tian, LUO Ze-min, CHEN Tao, Andy Hsitien Shen*. The Micro Mid-Infrared Spectral Study on Quench of Natural and Synthetic Ametrine[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(09): 2749-2756. |
|
|
|
|
