Difference between revisions of "Walnut"

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[[File:1976.122-SC28639.jpg|thumb|'''MFA Acc. #:''' 1976.122]]
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[[File:1976.122-SC28639.jpg|thumb|Rocking chair<br>MFA#: 1976.122]]
 
== Description ==
 
== Description ==
 
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[[File:1982.178-SC14541.jpg|thumb|Grand piano<br>MFA Acc#: 1982.178]]
 
Strong, valuable, hardwood trees of the genus ''Juglans'' native to the temperate climates of the northern hemisphere. Walnut trees have fine-grain, uniform wood that polishes to a high gloss. They are used for furniture, painting panels, frames, sculptures, veneer, piano cases, carving, and gun stocks. A drying oil is pressed from the nut kernels and is used in artist paints. Ground nut shells are used as a filler in plastics and as a soft abrasive. A dark brown dye can also be extracted from the nut shells.  
 
Strong, valuable, hardwood trees of the genus ''Juglans'' native to the temperate climates of the northern hemisphere. Walnut trees have fine-grain, uniform wood that polishes to a high gloss. They are used for furniture, painting panels, frames, sculptures, veneer, piano cases, carving, and gun stocks. A drying oil is pressed from the nut kernels and is used in artist paints. Ground nut shells are used as a filler in plastics and as a soft abrasive. A dark brown dye can also be extracted from the nut shells.  
[[File:1982.178-SC14541.jpg|thumb|'''MFA Acc. #:''' 1982.178]]
 
-American or [[black%20walnut%20|black walnut ]](''J. nigra''): native to the eastern U.S.
 
 
-[[Butternut|Butternut]] or white walnut (''J. cinerea''): native to the eastern U.S.
 
 
-California walnut (''J. californica''): native to the western U.S.
 
 
-[[English%20walnut|English]], Circassian, Persian, French walnut (''J. regia''): native to Eurasia
 
  
-Chinese walnut (''J. cathayensis''): native to Asia
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[[File:1985.36-SC58786.jpg|thumb|Wood-turning<br>MFA Acc#: 1985.36]]
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* American or [[black%20walnut%20|black walnut ]] (''J. nigra''): native to the eastern U.S.
 +
* [[Butternut|Butternut]] or white walnut (''J. cinerea''): native to the eastern U.S.
 +
* California walnut (''J. californica''): native to the western U.S.
 +
* [[English%20walnut|English]], Circassian, Persian, French walnut (''J. regia''): native to Eurasia
 +
* Chinese walnut (''J. cathayensis''): native to Asia
  
 
[[File:Uemura 08-13-2009 264.jpg|thumb|Silk dyed with walnut bark; Uemera Dye Archive]]
 
[[File:Uemura 08-13-2009 264.jpg|thumb|Silk dyed with walnut bark; Uemera Dye Archive]]
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[[File:walnut tangential view.jpg|thumb|Walnut, tangential view]]
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
  
noyer (Fr.); Walnuss (Deut.); noce (It.); nogueira (Port.); nogal (Esp.); Queen Ann's cabinet wood; Butternut or white walnut (''J. cinerea)''; California walnut (''Juglans californica''); English walnut (Circassian walnut, Persian walnut, French walnut (''Juglans regia''); Chinese walnut (''Juglans cathayensis'')
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noyer (Fr.); Walnuss (Deut.); noce (It.); nogueira (Port.); nogal (Esp.); black walnut (''Juglans nigra''); Queen Ann's cabinet wood; Butternut or white walnut (''J. cinerea)''; California walnut (''Juglans californica''); English walnut (Circassian walnut, Persian walnut, French walnut (''Juglans regia''); Chinese walnut (''Juglans cathayensis'')
 
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== Collection Risks ==
{| class="wikitable"
 
|-
 
! scope="row"| Density
 
| 40-50 ppcf
 
|}
 
 
 
== Additional Information ==
 
  
 
'''Links to Oddy Test results posted on AIC Wiki Materials Database Pages for individual materials below'''
 
'''Links to Oddy Test results posted on AIC Wiki Materials Database Pages for individual materials below'''
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° [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Walnut0002 Walnut] Tested in 2012 for comparison to coated Walnut wood
 
° [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Walnut0002 Walnut] Tested in 2012 for comparison to coated Walnut wood
  
== Additional Images ==
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== Physical and Chemical Properties ==
 
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* Height: 30-40 me
<gallery>
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* Bark: grey-black with deeply furrowed, thin ridges in a diamond pattern
File:1985.36-SC58786.jpg|'''MFA Acc. #:''' 1985.36
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* Leaves: pinnately compound alternating on stem with 15-23 leaflets. Stem is 20-60 cm long
File:walnut tangential view.jpg|Walnut
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* Density = 40-50 ppcf
</gallery>
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* Fruit: nuts ripen in late summer/fall with a greenish brown husk encasing a brown nut
  
== Sources Checked for Data in Record ==
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== Resources and Citations ==
 +
* Alden Identification Services, Microscopic Wood Identification: [https://wood-identification.com/wood-types/ Link]
  
 
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 856
 
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 856
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* ''CRC Handbook of Chemistry and Physics'', Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980  Comment: density=40-43 ppcf (0.64-0.70 g/cm3)
 
* ''CRC Handbook of Chemistry and Physics'', Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980  Comment: density=40-43 ppcf (0.64-0.70 g/cm3)
  
 
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* Wikipedia: https://en.wikipedia.org/wiki/Juglans_nigra (Accessed October 2020)
  
 
[[Category:Materials database]]
 
[[Category:Materials database]]

Latest revision as of 09:00, 9 October 2020

Rocking chair
MFA#: 1976.122

Description

Grand piano
MFA Acc#: 1982.178

Strong, valuable, hardwood trees of the genus Juglans native to the temperate climates of the northern hemisphere. Walnut trees have fine-grain, uniform wood that polishes to a high gloss. They are used for furniture, painting panels, frames, sculptures, veneer, piano cases, carving, and gun stocks. A drying oil is pressed from the nut kernels and is used in artist paints. Ground nut shells are used as a filler in plastics and as a soft abrasive. A dark brown dye can also be extracted from the nut shells.

Wood-turning
MFA Acc#: 1985.36
  • American or Black walnut (J. nigra): native to the eastern U.S.
  • Butternut or white walnut (J. cinerea): native to the eastern U.S.
  • California walnut (J. californica): native to the western U.S.
  • English, Circassian, Persian, French walnut (J. regia): native to Eurasia
  • Chinese walnut (J. cathayensis): native to Asia
Silk dyed with walnut bark; Uemera Dye Archive
Walnut, tangential view

Synonyms and Related Terms

noyer (Fr.); Walnuss (Deut.); noce (It.); nogueira (Port.); nogal (Esp.); black walnut (Juglans nigra); Queen Ann's cabinet wood; Butternut or white walnut (J. cinerea); California walnut (Juglans californica); English walnut (Circassian walnut, Persian walnut, French walnut (Juglans regia); Chinese walnut (Juglans cathayensis)

Collection Risks

Links to Oddy Test results posted on AIC Wiki Materials Database Pages for individual materials below

° Walnut Tested in 2012

° Walnut Tested in 2012 for comparison to coated Walnut wood

Physical and Chemical Properties

  • Height: 30-40 me
  • Bark: grey-black with deeply furrowed, thin ridges in a diamond pattern
  • Leaves: pinnately compound alternating on stem with 15-23 leaflets. Stem is 20-60 cm long
  • Density = 40-50 ppcf
  • Fruit: nuts ripen in late summer/fall with a greenish brown husk encasing a brown nut

Resources and Citations

  • Alden Identification Services, Microscopic Wood Identification: Link
  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 856
  • Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
  • Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
  • F. H. Titmuss, Commercial Timbers of the World, The Technical Press Ltd., London, 1965 Comment: 40-50 ppcf
  • Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
  • Pam Hatchfield, Pollutants in the Museum Environment, Archetype Press, London, 2002
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
  • CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: density=40-43 ppcf (0.64-0.70 g/cm3)