Fig. 6
From: Chinese glass ornaments from the port site of Shuo Gate, Zhejiang, China, 10th–13th Century CE
Raman spectrum graphs of the samples OB and OW, illustrating the presence of CaF2 at wavenumber 319 cm−1, compared with that of the pure mineral fluorite, calcium fluoride. From KnowItAll Raman spectral database47.
