Li-ying HUANG, Quan-li CHEN, Xin-xin GAO, Yang DU, Feng-shun XU. Study on Composition and Spectral Characteristics of Turquoise Treated by “Porcelain-Added”[J]. Spectroscopy and Spectral Analysis, 2021, 41(7): 2245
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 7, 2245 (2021)
Fig. 1. Samples of turquoises
Fig. 2. Relative density plot of Turquoise samples
Fig. 3. Surface characteristics of turquoisestreated by “Porcelain-Added”
(a, d): Granular transparent crystals and hairy filaments; (b): The change of luster; (c): Local blue spots appear
(a, d): Granular transparent crystals and hairy filaments; (b): The change of luster; (c): Local blue spots appear
Fig. 4. UV-Vis absorption spectra of some turquoise samples
Fig. 5. Infrared spectra of natural turquoises
Fig. 6. Infrared spectra of turquoisestreated by “Porcelain-Added”
Fig. 7. Plot of main element content of samples
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Table 1. Chemical composition of dominant elements in turquoise samples
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