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Table 2 XRD peaks observed in the diffractograms of samples 2 and 3 and found in the RUFF database gypsum references R060509 and R040029

From: A multi-analytical study of historical coated plaster surfaces: the examination of a nineteenth-century V&A cast of a tombstone

XRD peaks, 2θ [°]
Sample 2 Sample 3 R060509 R040029
11.6304 11.67299 11.6688 11.6553
20.6882 20.74514 20.7682 20.7582
23.3816 23.37026 28.1588 28.1498
26.8718    
29.121 29.10739 29.1507 29.1396
31.0975 31.12382   
  32.09465   
33.4643 33.34622   
  34.53655   34.6194
  35.94149   35.9997
  36.65667 36.0027 36.65
  37.3434 37.4189 37.4124
40.5746 40.63457   
43.4695 43.38031   42.2079
  44.16252   44.2309
45.8294 45.51888 45.5453 45.5268
  46.495   46.4606
47.8711 47.85724 47.8955 47.8848
  48.35782 48.4221 48.3983
  48.72981   
  50.32856   
  50.73068   
  51.34237   
  54.41229   54.4676
  55.14868 55.2183 55.191
  55.81309   55.8618
56.6775 56.7291   
58.2058 58.19157   60.3599
  64.75298   
  65.8196   
67.0222 66.7291   66.7077
68.9538 68.66935   
  70.65909   
71.4685 71.22731   
  74.11747   
  76.56741   
  77.39589   
  79.61351