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Table 7 Chemical compositions of the marked positions in Fig. 9c, e, f, and i (in wt%)

From: Corrosion of Longquan celadons in the marine environment: study on the celadons from the Dalian Island shipwreck of the Yuan Dynasty

Position No Ratio Na2O MgO Al2O3 SiO2 K2O CaO TiO2 Fe2O3 Possible phase
P1 wt%   34.60 30.86 21.82 2.61 2.65 4.50 2.97 Quintinite
  mol%   51.48 18.00 21.61 1.65 2.81 3.35 1.10
P2 wt% 0.30 1.97 33.94 41.04   19.32 3.44   Anorthite
  mol% 0.33 3.38 22.84 46.87   23.64 2.95  
P3 wt%   60.98 38.13 0.89      Quintinite
  mol%   79.69 19.54 0.77     
P4 wt%   57.94 39.65 2.41      Quintinite
  mol%   77.16 20.71 2.14     
P5 wt%   17.03 3.75 51.12   27.13   0.97 Diopside
  mol%   23.62 2.04 47.18   26.83   0.34
P6 wt%   35.11 25.12 4.54     35.23 Quintinite
  mol%   61.82 17.35 5.32     15.51