Laser & Optoelectronics Progress, Volume. 58, Issue 9, 0930001(2021)
Spectral Characteristics and Structure of Trapiche Aquamarine
Trapiche structure refers to a special structure comprising arms, core, and main body. In this study, the spectroscopic characteristics and element, structure are investigated using various modern testing methods. The results showed that the infrared spectrum of beryl agrees with the characteristics of water-type beryl of alkali-deficient structure. The Raman spectra show that the components of the core and arms are consistent with that of the main body, which belongs to beryl. The UV-Vis absorption spectra showed that Fe2+ exists in octahedron and tunnel, confirming the reason for the blue color of the sample. The composition analysis shows that high content of Fe2+ exists in the periphery and arms of hexagonal, with deeper blue color. The Trapiche arms' position of the aquamarine agrees with the hexagonal columnar plane, which belongs to the Trapiche-like gem. The microscopic characteristics show that the "arm" comprises a large number of directionally arranged flocculent inclusions, which are jointly caused by defects formed in the process of crystal-layered outward growth and parallel concatenation according to the theory of crystal-layered growth.
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Huizhen Huang, Jie Luo, Yalan Xu, Xunchong Zou, Jiawei Jin, Yiqiong Huang. Spectral Characteristics and Structure of Trapiche Aquamarine[J]. Laser & Optoelectronics Progress, 2021, 58(9): 0930001
Category: Spectroscopy
Received: Sep. 22, 2020
Accepted: Oct. 14, 2020
Published Online: May. 12, 2021
The Author Email: Luo Jie (luojie1717@163.com)