Yu-yan WANG, Ling-yue YANG, Ming LI, Peng-tao YANG, Hsitien Shen Andy, Chao-wen WANG. Spectral Characteristics and Color Origin of Unstable Yellow Sapphire[J]. Spectroscopy and Spectral Analysis, 2021, 41(8): 2611
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 8, 2611 (2021)
Fig. 1. Color of yellow sapphire samples showing in “fading state” (a) and “coloring state” (b)
Fig. 2. Samples present discoid (HS-1) and pinnate (HS-2) inclusions indicating dissilient tracks caused by heat treatment
Fig. 3. UV-Vis spectrum of 13 samples
Fig. 4. UV-Vis spectrum of some samples in “coloring state” and “fading state”
Fig. 5. 3D fluorescence spectrum of S-2 and S-0 in “fading state” and “coloring state”
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