Figures of the Article

• The processing flow chart of aquamarine beads
• Aquamarine raw material samples
• Aquamarine raw material sample Aq-R-10(left) and the slice(right)
• Aquamarine product samples
• Aquamarine product sample Aq-5-5 (a)and the slice(b)
• Aquamarine raw material before and after bleaching and filling treatment: a.Aquamarine raw material; b.bleached aquamarine; c.bleached and filled aquamarine; d.cutted aquamarine collected from the production line
• Microscopic characteristics of aquamarine product samples
• Gas bubbles in aquamarine samples
• Fluorescence images of aquamarine sample Aq-R-9(a, b) and Aq-5-5(c, d) under DiamondView^TM
• Infrared spectra of aquamarine samples: a.Infrared transmission spectrum of sample Aq-1; b.Infrared transmission spectrum of sample Aq-4-1;c.Infrared reflection spectrum of sample Aq-4-1 measured in different directions; d.Infrared spectrum of sample Aq-R-7
• Micro-infrared spectrum of the centre of sample Aq-R-10
• Intensity distribution of micro-infrared absorption peak at 3 035 cm^-1 in the area scanning region
• Micro-infrared spectra of sample Aq-5-5