Difference between revisions of "Yellow ocher"
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− | [[File: | + | [[File:Eros Sculpture-CR4047-d1.jpg|thumb|Eros sculpture<br>MFA# 1979.477]] |
== Description == | == Description == | ||
A natural yellow earth mineral primarily composed of [[goethite|goethite]] (iron hydroxide) and [[clay|clay]]. Yellow ochers occur naturally throughout the world and have been used as a pigment since prehistoric times. Synthetically produced yellow ocher pigment, introduced at the end of the 18th century, is sold under the name of [[Mars%20yellow|Mars yellow]]. | A natural yellow earth mineral primarily composed of [[goethite|goethite]] (iron hydroxide) and [[clay|clay]]. Yellow ochers occur naturally throughout the world and have been used as a pigment since prehistoric times. Synthetically produced yellow ocher pigment, introduced at the end of the 18th century, is sold under the name of [[Mars%20yellow|Mars yellow]]. | ||
− | [[[SliderGallery rightalign|Yellow ocher (Forbes MFA 258) 785nm (640x445).jpg~Raman | + | [[[SliderGallery rightalign|Yellow ochre, 269.TIF~FTIR (MFA)|Yellow ocher (Forbes MFA 258) 785nm (640x445).jpg~Raman (MFA)|PIG258.jpg~XRD|f258sem.jpg~SEM|f258edsbw.jpg~EDS|Slide28 FC258.PNG~XRF]]] |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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<gallery> | <gallery> | ||
− | File:589 pale yellow ocher.jpg|Yellow ocher, pale | + | File:258 yellow ocher.jpg|Yellow ocher<br>Forbes pigment 258 |
− | File:yellowocher C100x.jpg|Yellow ocher | + | File:589 pale yellow ocher.jpg|Yellow ocher, pale<br>Forbes pigment 589 |
− | File:9_Yellow-ocher_500X.jpg|Yellow ocher | + | File:yellowocher C100x.jpg|Yellow ocher at 100x (visible light left; UV light right) |
− | File:9_Yellow-ocher_200X_pol.jpg|Yellow ocher | + | File:9_Yellow-ocher_500X.jpg|Yellow ocher at 500x |
+ | File:9_Yellow-ocher_200X_pol.jpg|Yellow ocher at 200x polarized light | ||
</gallery> | </gallery> | ||
− | + | ==Resources and Citations== | |
− | == | ||
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 558 | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 558 |
Revision as of 12:42, 22 June 2022
Description
A natural yellow earth mineral primarily composed of Goethite (iron hydroxide) and Clay. Yellow ochers occur naturally throughout the world and have been used as a pigment since prehistoric times. Synthetically produced yellow ocher pigment, introduced at the end of the 18th century, is sold under the name of Mars yellow.
Synonyms and Related Terms
goethite; limonite; yellow ochre; ocre jaune (Fr.); yellow earth; earth yellow; Mars yellow; gold ochre; raw sienna; French ochre; raw umber
Additional Images
Resources and Citations
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 558
- Reed Kay, The Painter's Guide To Studio Methods and Materials, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1983
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- 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