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Table 3 Summary of compounds identified in samples 1 and 2 of funerary pigments found in the Rio Azul tomb

From: Funerary colors in Pre-classical Maya culture: the red pigment in the 19th tomb of Rio Azul (Peten, Guatemala)

Sample Major components Minor components Remarks
1 Calcite Quartz Presence of small amounts of organic matter
Corroded glass fragment Clays
  Gaylussite
  Haematite
  Cinnabar (arsenic sulphide)
  Galena
  Whewellite
  Hydroxylapatite
  Alkaline chloride
2 Cinnabar (arsenic sulphide) Quartz Presence of small amounts of organic matter
Haematite Hydroxylapatite
Calcite Clays
  Goethite
  Whewellite
  Alkaline sulphate