Preliminary Raman Spectroscopic Study of Szaibélyite
SUI Xin-hao1, 2, ZHAO Xu-wei1, 2, BAO Xin-jian1, 2, HE Ming-yue3, LIU Xi1, 2*
1. Key Laboratory of Orogenic Belts and Crustal Evolution, Ministry of Education, Beijing 100871, China
2. School of Earth and Space Sciences, Peking University, Beijing 100871, China
3. School of Gemmology, China University of Geosciences (Beijing), Beijing 100083, China
Abstract：Szaibélyite is a hydrated borate mineral with limited research on its Raman spectrum. This study conducted a preliminary Raman spectroscopic analysis of szaibélyite, with the Raman data collected on szaibélyite found in some serpentinized jianite from Ji'an County, Jilin Province, China. Our microscopic observations show that the szaibélyite is associated with serpentine-group minerals, forsterite, brucite, etc. It occurs as fibrous or fine flattened crystals with diameters of up to several tens of micrometers or nanocrystals forming aggregates with minor amounts of nano brucite. Energy dispersive spectroscopy analyses suggest its composition is close to the ideal MgBO2(OH) formula. In the range of 100~1 600 cm-1, approximately 28 Raman peaks have been observed, with the strongest peak appearing at ~823 cm-1. In the range of 3 000~4 000 cm-1, two sharp strong peaks at ~3 058 and 3 553 cm-1 and a weak shoulder peak at ~3 562 cm-1 have been observed. Among them, the Raman peak at ~3 058 cm-1 is observed for the first time. These peaks are mostly related to the O—H stretching vibrations. Aided with previous single-crystal X-ray diffraction data and infrared spectroscopic data, we propose that the strong Raman peaks at ~3 058 and 3 553 cm-1 may be caused respectively by the hydroxyl groups O(4)—H and O(6)—Hin szaibélyite. The origin of the weak shoulder peak at ~3 562 cm-1 is still unclear and requires further investigation.
Key words：Szaibélyite; Raman spectroscopy; Crystal structure; Hydroxyl group
隋欣浩，赵旭炜，暴新建，何明跃，刘 曦. 硼镁石拉曼光谱的初步研究[J]. 光谱学与光谱分析, 2025, 45(04): 1096-1102.
SUI Xin-hao, ZHAO Xu-wei, BAO Xin-jian, HE Ming-yue, LIU Xi. Preliminary Raman Spectroscopic Study of Szaibélyite. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2025, 45(04): 1096-1102.
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