[1] Akamasu S, Komatsu H, Koizumi C, et al. Bulletin of the Japanese Scientific Fisheries, 1977, 43(6): 773.
[2] Shigeru Akamatsu. Research on Pigment Produced by Pearl Oysters. Proceedings of the International Gemological Symposium, 1991, GIA, 77.
[3] Miyanoto H, Miyashita T, Okushima Ma Matal. Proc. Natl. Acad. Sci. USA, 1996, 93: 9657.
[4] Zhang Gangsheng, Xie Xiande, Wang Ying. Acta Mineralogica Sinica, 2001, 21(3): 389.
[5] Zhang En, Xing Ming, Peng Mingsheng. Acta Petrologica et Mineralogica, 2007, 26(4): 381.
[6] Li Liping. Journal of China University of Geosciences, 2009, 34(5): 752.
[7] Habermann D, Banerjee A, Meijer J, et al. Nuclear Instruments and Methods in Physics Research, 2001, (181B): 739.
[8] Mu Shichun, Ma Hongyan. Acta Mineralogica Sinica, 2001, 21(3): 551.
[9] Lan Yan, Zhang Zhufu, Zhang Tianyang. Journal of Gems and Gemmology, 2010, 12(4): 31.
[10] Yang Mingyue, Guo Shouguo, Shi Lingyun, et al. Journal of Gems and Gemmology, 2004, 6(2):10.
[11] Zheng Daheng, Zeng Wentao, Han Jiwei,et al. Oceanologia et Limnologia Sinica, 2013, 44(3): 677.
[12] Wang Kui, Tang Renhuan, Xu Hubi, et al. The Trace Elements of the Life Sciences. Beijing: China Metrology Publishing House, 1996. 5.