Raw umber

Jump to navigation Jump to search
Raw umber


Raw umber

A pale yellowish brown natural earth pigment that contains Manganese dioxide and iron hydroxide. See Umber.

Synonyms and Related Terms

Pigment Brown 7; CI 77492; umbra; terre d'ombre naturelle (Fr.); Umbra natur (Deut.); ombra omi (Gr.); terra d'ombra naturale (It.); ruwe omber (Ned.); grisaille; Sicilian brown



Physical and Chemical Properties

Slightly soluble in acids giving a yellow solution. Turns reddish brown when heated.

Density 3.2 g/ml
Refractive Index 1.87-2.17

Additional Images

Resources and Citations

  • R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966 Comment: density = 3.20 and ref. index = 1.87-2.17
  • Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
  • R.D. Harley, Artists' Pigments c. 1600-1835, Butterworth Scientific, London, 1982
  • Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996

Retrieved from "https://cameo.mfa.org/index.php?title=Raw_umber&oldid=90810"