Spectra Characterization of the Uvarovite in Anorthitic Jade
LIU Jia1, YANG Ming-xing1, 2*, DI Jing-ru1, 2, HE Chong2
1. Gemmological Institue, China University of Geosciences, Wuhan 430074, China
2. Gem Testing Center, China University of Geosciences, Wuhan 430074, China
Abstract：The green minerals in Anorthitic Jade were considered to be uvarovite, which is a very rare member in natural garnet group. Uvarovite is very rare in natural conditions, the color is emerald green, uvarovite of high quality can be compared with Jade and Emerald. Predecessors have done some researches on the other end members of the garnets. However, little researches have been done on the uvarovite, no reports have been obtained about the spectrum characteristics of the uvarovite in Anorthitic Jade. The composition of this garnet was Uvt49.66Grs36.04Adr13.58Prp0.67Sps0.06 by using the JXA-8230 Electron Probe. Using the Bruker R200L Raman spectrometer, the Raman shifts we got of the sample were 1 000，890，879，830，618，589，530，508，399，370，270，240 and 176 cm-1，respectively, which have been influenced by the interaction of different trivalent cations Cr3+, Al3+ and Fe3+; Measurement of the infrared vibration frequency was performed using the Bruker V80 infrared spectrometer, acquiring the results of 1 019, 951, 908, 844, 826, 721, 669, 608, 538, 496, 462, 430 and 413 cm-1，respectively, the regular vibration excursion occurs due to the influence of the unit cell volume and the mass fraction of the trivalent cations; With the Jasco MSV-5200, the Micro-UV-Vis-NIR spectra shows that absorption peaks caused by electron transition of Cr3+were at 439, 613, 453 and 685 nm absorption were acromion, while a acromion absorption peaks caused by electron transition of Fe3+ was at 371 nm, the colored ion of the uvarovite is mainly Cr3+. The detailed spectrum study of the uvarovite in Anorthitic Jade provides rich spectral data for the identification of the garnet, and distinguishing from the similar traditional Dushan jade.
刘 佳，杨明星，狄敬如，何 翀. 钙长石质玉中钙铬榴石的谱学研究[J]. 光谱学与光谱分析, 2018, 38(06): 1758-1762.
LIU Jia, YANG Ming-xing, DI Jing-ru, HE Chong. Spectra Characterization of the Uvarovite in Anorthitic Jade. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(06): 1758-1762.
[1] LIU Jia, YANG Ming-xing, DI Jing-ru, et al(刘 佳，杨明星，狄敬如，等). Journal of Gems & Gemmology(宝石和宝石学杂志)，2018，20(1)：26.
[2] Valenzano L, Pascale F, Ferrero M, et al. International Journal of Quantum Chemistry, 2010, 110(2): 416.
[3] Pascale F, Catti M, Damin A, et al. J. Phys. Chem. B, 2005, 109(39): 18522.
[4] Dovesi R, Valenzano L, Pascale F, et al. J. Raman Spectrosc.，2009, 40(4): 416.
[5] Parthasarathy G, Balaram V, Srinivasan R. Journal of Asian Earth Sciences, 1999, 17(3): 345.
[6] Yoshiko Suwa, Shigeharu Naka. American Mineralogist, 1975, 60: 1125.
[7] Petre Makreski, Tomce R, Gligor J. Journal of Raman Spectroscopy, 2011, 42(1): 72.
[8] HE Xue-mei, Lü Lin-su(何雪梅, 吕麟素). Journal of Gems & Grmmology(宝石和宝石学杂质), 2003, 5(3): 10.
[9] PENG Wen-shi, LIU Gao-kui(彭文世, 刘高魁). Infrared Spectrum Atlas of Minerals(矿物红外光谱图集). Beijing: Science Press(北京: 科学出版社), 1982.
[10] Moroz T, Ragozin A, Salikhov D, et al. Spectrochimica Acta Part, 2009, 73(3): 436.
[11] Zicovich Wilson C M, Torres F J, Pascale F, et al. Journal of Computational Chemistry, 2008, 29(13): 2268.
[12] Navas A S, Reddy B J, Nieto F. Spectrochimica Acta Part A, 2004, 60(10): 2261.
[13] Andrut M, Wildner M. Physics & Chemistry of Minerals, 2002, 29(9): 595.
[14] Manning P G. The Canadian Mineralogist, 1969, 9(5): 723.
[15] Lakshman S V J, Reddy B J. Physica, 1974, 71(1): 197.
[16] CHEN Feng, LIN Chuan-yi, ZHANG Hui-fen, et al(陈 丰, 林传易, 张蕙芬, 等). An Introduction to Mineral Physics(矿物物理学概论). Beijing: Science Press(北京: 科学出版社)，1995. 61.
[17] Novak G A, Gibbs G V. American Mineralogist, 1971, 56: 791.
[18] Huckenholz H G，Knittel D. Contributions to Mineralogy and Petrology, 1975, 49(3): 211.
