Green earth

Green earth, also known as terre verte and Verona green, is an inorganic pigment derived from the minerals celadonite and glauconite.[1][2] Its chemical formula is K[(Al,FeIII),(FeII,Mg](AlSi3,Si4)O10(OH)2.[3]

First used by the ancient Romans, green earth has been identified on wall paintings at Pompeii and Dura-Europos.[4][5] The Renaissance painter and writer Cennino Cennini claimed that “the ancients never gilded except with this green” being used as a bole, or undercoating. In the Middle Ages one of its best-known uses was in the underpainting of flesh tones.[3]

High quality deposits can be found in England, France, Cyprus, Germany and at Monte Baldo near Verona in Italy.[5] The color ranges from neutral yellow green to pale greenish gray to dark matte olive green.[3]

See also

References

  1. ↑ Green earth Colourlex. Retrieved August 29, 2016.
  2. ↑ Green earth. Pigments through the Ages. www.webexhibits.com. Retrieved August 29, 2016.
  3. 1 2 3 Common Medieval Pigments. d-scholarship.pitt.edu. Retrieved August 29, 2016.
  4. ↑ Varichon, Anne (2000). Couleurs – pigments et teintures dans les mains des peuples. Seuil. pp. 210–211. ISBN 978-2-02084697-4.
  5. 1 2 Terre Verte. https://www.library.cornell.edu/preservation/paper/4PigAtlasWestern1.pdf. Retrieved August 30, 2016.
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