A natural earth brown pigment ranging in color from a dark yellow to a deep reddish brown. Brown ocher contains silica, clay, and a mixture of iron oxides along with small amounts of manganese dioxide. It is more commonly called umber or sienna, depending on its color.
Synonyms and Related Terms
umber; sienna; brown ochre (Br.); ocra marrone (It.)
Sources Checked for Data in Record
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- R.D. Harley, Artists' Pigments c. 1600-1835, Butterworth Scientific, London, 1982
- Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
- The Dictionary of Art, Grove's Dictionaries Inc., New York, 1996 Comment: "Pigments"