Fig. 1. No.8 niche of Shuining Temple

Fig. 2. The image of the sample after 200 times magnification
(a): Sample No.1; (b): Sample No.2; (c): Sample No.3; (d): Sample No.4; (e): Sample No.5; (f): Sample No.6

Fig. 3. sample XRD analysis diagram
(a): Sample No.1; (b): Sample No.2; (c): Sample No.3; (d): Sample No.4; (e): Sample No.5; (f): Sample No.6

Fig. 4. Fe₂O₃ and Raman Atlas of Sample No.1
a: Fe₂O₃ Raman standard diagram;b: Raman diagram of Sample No.1

Fig. 5. Lapis lazuli and Raman atlas of sample No.5
a: Raman standard diagram of Lapis lazuli;b: Sample Atlas of No.5