Difference between revisions of "Sienna"
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== Description == | == Description == | ||
| − | A natural, yellowish brown variety of ocher named for the south Italian city of Siena that produced fine grades of the pigment. [http://cameo.mfa.org/materials/fullrecord.asp?name=Raw | + | A natural, yellowish brown variety of ocher named for the south Italian city of Siena that produced fine grades of the pigment. [http://cameo.mfa.org/materials/fullrecord.asp?name=Raw%20sienna Raw sienna] contains at least 50% hydrated ferric oxide ([http://cameo.mfa.org/materials/fullrecord.asp?name=goethite goethite]) mixed with [http://cameo.mfa.org/materials/fullrecord.asp?name=alumina alumina], [http://cameo.mfa.org/materials/fullrecord.asp?name=clay clay], and some [http://cameo.mfa.org/materials/fullrecord.asp?name=manganese%20dioxide manganese dioxide]. It produces a permanent, transparent paint that is often used as a glaze. [http://cameo.mfa.org/materials/fullrecord.asp?name=Burnt%20sienna Burnt sienna's] warm reddish color is obtained by burning the raw material. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
Revision as of 11:03, 13 June 2013
Description
A natural, yellowish brown variety of ocher named for the south Italian city of Siena that produced fine grades of the pigment. Raw sienna contains at least 50% hydrated ferric oxide (goethite) mixed with alumina, clay, and some manganese dioxide. It produces a permanent, transparent paint that is often used as a glaze. Burnt sienna's warm reddish color is obtained by burning the raw material.
Synonyms and Related Terms
raw sienna; burnt sienna; terre de Sienne (Fr.); terra di Siena (It.); siena (Port.)
Authority
- R. J. Gettens, G.L. Stout, R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966
- G.S.Brady, G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 557
- Ralph Mayer, Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- Michael McCann, Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
- Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
- Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000