nyuuzyou/wikis huggingface dataset:
Glutaraldehyde

== Description ==
A strong smelling gas sold commercially as a 25% aqueous solution. Glutaraldehyde polymerizes in water to form a clear viscous liquid. It is used as a biocide which acts by disrupting the cells of lichen, mold, bacteria, and fungi by alkylating and crosslinking the proteins. Glutaraldehyde is also used as a synthetic tanning agent for leathers.
[[[SliderGallery rightalign|glutaraldehyde.jpg~Chemical structure]]]
== Synonyms and Related Terms ==
glutaric dialdehyde; 1,5-pentanedial; glutaral; 1,3-diformylpropane; Cidex; Glutarol; Novaruca; Verucasep; Ucaricide
== Risks ==
* Toxic by inhalation and ingestion. 
* Skin contact causes irritation. 
*Fisher Scientific: MSDS
== Physical and Chemical Properties ==
Soluble in water.
Composition 	OHC(CH2)3CHO
CAS 	111-30-8
Melting Point 	-14 C
Density 	0.7 g/ml
Molecular Weight	mol. wt. = 100.12
Refractive Index	1.4338
Boiling Point 	187-189 C (dec)
== Resources and Citations==
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 4480
* Wikipedia: http://en.wikipedia.org/wiki/Glutaraldehyde (Accessed Mar. 1, 2006)
Category:Materials database
Gluten

== Description ==
A brown, water-insoluble, non-starchy portion of cereal grains, such as wheat, corn and rice. Gluten is composed of a mixture of 18 plant proteins. It is hygroscopic and will form an elastic dough when mixed with water. Gluten must be removed to make starch paste. Dilute aqueous mixtures of gluten have been used as adhesives. Prior to the 19th century, the term gluten was used to refer to an adhesive material.
Category:Materials database
Glyceride

== Description ==
A natural or synthetic ester of glycerol. A glyceride may be formed by the replacement of one or more of the hydroxyl groups in glycerol with an fatty acid. Natural oils and fats are the primary source for glycerides. 
See also triglyceride.
== Synonyms and Related Terms ==
glycerides
== Resources and Citations ==
* R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966
* Encyclopedia Britannica, http://www.britannica.com Comment: Fat." Accessed 14 Apr. 2004.
Category:Materials database
Glycerol

== Description ==
A transparent, colorless, viscous liquid that is hygroscopic and has a sweet taste. Glycerol, first isolated in 1779 by Scheele, is a byproduct from the saponification of fats and oils. It is used in the production of alkyd resins, ester gums and dynamite. The thick, neutral liquid is also used as an emulsifier/plasticizer in printing inks, watercolor and gouache paints, glues, cements, and regenerated cellulose (rayon, cellophane). In some formulations, glycerol is substituted with sorbitol, or corn syrup. The term glycerin is used for commercial materials containing more than 95 percent glycerol.
[[[SliderGallery rightalign|aaiGLYCERIN.jpg~FTIR|glycerol.jpg~Chemical structure]]]
== Synonyms and Related Terms ==
glycerin; glycerine; glycol alcohol; 1,2,3-propanetriol; trihydroxypropane; sweet oil; glyceryl alcohol
== Risks ==
* Combustible. May explode if mixed with strong oxidizing agents such as chromium trioxide, potassium chlorate or potassium permanganate. 
* ThermoFisher: SDS
* Most references consider glycerol a green solvent because it is bio-based, relatively non-toxic and biodegradable; its drawback for use is viscosity.
== Physical and Chemical Properties ==
Miscible with water, ethanol. Insoluble in ether, benzene and chlorinated hydrocarbons.
Composition 	C3H8O3
CAS 	56-81-5
Melting Point 	17.8 C
Density 	1.2653 g/ml
Molecular Weight	mol. wt. = 92.1
Boiling Point 	290 C
== Comparisons ==
== Resources and Citations ==
* Encyclopedia Britannica, http://www.britannica.com Comment: Glycerol. Retrieved June 1, 2003.
* R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966
* Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
* Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
* Reed Kay, The Painter's Guide To Studio Methods and Materials, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1983
* S.R.Trotman, E.R. Trotman, Textile Analysis, J.B. Lippincott Company, Philadelphia, 1932
* Conservation termlist : www.hants.org.uk/museums
Category:Materials database
Glycin

== Description ==
A white, crystalline powder used as a black and white photographic developer. Glycin is as used as a colorimetric detection of iron, phosphorus, and silicon.
== Synonyms and Related Terms ==
[[[SliderGallery rightalign|glycin.jpg~Chemical structure]]]
p-hydroxyphenol aminoacetic acid; n-(4-hydroxyphenyl) glycine; photoglycine; glycine (photographic); Monazol; Ionyl
== Risks ==
* Skin contact may cause irritation and allergies. 
* Inhalation or ingestion may cause anemia, cyanosis, nausea, dizziness or difficulties in breathing. 
* Fisher Scientific: MSDS
== Physical and Chemical Properties ==
Soluble in alkalis and acids. 
Slightly soluble in water, alcohol, acetone, ether, chloroform.
Composition 	C8H9NO3
CAS 	122-87-2
Melting Point 	240 C (dec)
Molecular Weight	mol. wt. = 167.16
== Resources and Citations ==
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 4885
* Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
Category:Materials database
Glycine

== Description ==
A nonessential amino acid found in gelatin, animal glue, silk fibroin and sugarcane. Glycine acts as an inhibitor in neurotransmission.
[[[SliderGallery rightalign|glycine.jpg~Chemical structure]]]
== Synonyms and Related Terms ==
GLY; aminoacetic acid; aminoethanoic acid; glycocoll
==Risks==
* ThermoFisher: SDS
== Physical and Chemical Properties ==
Soluble in water with pH 4.0 (0.2 M solution) 
Insoluble in ethanol and ether.
Composition 	C2H5NO2
CAS 	56-40-6
Melting Point 	232-236 C (dec)
Density 	1.1607 g/ml
Molecular Weight	mol. wt. = 75.07
== Resources and Citations ==
* Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 4500
Category:Materials database
Glycogen

== Description ==
A polysaccharide that is the principal storage form of glucose. Glycogen occurs naturally in the liver and muscles of mammals. Glycogen also is found in insects, fungi, and yeasts. It gives a positive test for starch with iodine (i.e. blue color).
== Synonyms and Related Terms ==
animal starch; liver starch; Glykogen (Dan., Deut., Nor., Sven.); glucógeno (Esp.); glycogène (Fr.); glicogeno (It.); glycogeen (Ned.); glikogen (Pol.); glicogénio (Port.);
==Risks==
* ThermoFisher: SDS
== Physical and Chemical Properties ==
Soluble in water. Insoluble in ethanol.
Composition 	C6H10O5
CAS 	9005-79-2
Molecular Weight	mol. wt. > 300,000
== Resources and Citations ==
* Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 138
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 4506
Category:Materials database
Glyphosate

== Description ==
White, odorless solid used as a post-emergence herbicide. Glyphosate is a phosphoorganic compounds that has been used to control ruderal vegetation. It has no residual activity.
== Synonyms and Related Terms ==
n-(phosphonomethyl)glycine; Roundup (mono(isopropylammonium) salt [Monsanto]; Polado (sesquisodium salt)
== Risks ==
* LD50 = 5600 mg/kg 
* Contact may cause irritation and redness. 
* Combustion produces toxic fumes. 
* Alligare: SDS
== Physical and Chemical Properties ==
Soluble in water. Insoluble in most organic solvents.
Composition 	C3H8NO5P
CAS 	1071-83-6
Melting Point 	230 C
Density 	1.7 g/ml
Molecular Weight	mol. wt. = 169.1
== Resources and Citations ==
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 4522
* G.Caneva, M.P.Nugari, O.Salvadori, Biology in the Conservation of Works of Art, ICCROM, Rome, 1991
Category:Materials database
Glyptal

== Description ==
Former General Electric trademark for a group of alkyd resins patented in 1914 and first used as a paint in the 1930s. Glyptal paints are made by heating phthalic anhydride and glycerin together. Still available today, glyptal is used in shellac, varnishes, and paints.
[[[SliderGallery rightalign|aaiGLYPTAL.jpg~FTIR]]]
== Synonyms and Related Terms ==
Glyp
==Resources and Citations==
* Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
Category:Materials database
Gmelina

== Description ==
A cream-color wood obtained from the Gmelina arborea tree native to India. Gmelina wood has a medium texture with a straight or roey grain. It is easy to work and polishes to a silky smooth finish with a high gloss. Gmelina wood is used for furniture, cabinetry, boatbuilding, musical instruments, and decorative boxes. The tree is also cultivated for papermaking pulp.
== Synonyms and Related Terms ==
Gmelina arborea; yemane (Fr.); oumari (Port.); gumhar
==Physical and Chemical Properities==
* Density = 30 ppcf
Paper fiber type: hardwood. Using transmitted light microscopy, pulp is identified by small oblong vessels with profuse, alternate pitting. Perforations are simple. Fibers have irregular ends. Septate fibers with transverse walls across the lumen are also present. Appearance with Graff "C" stain: dark blue, but varies with bleaching. Average dimensions of fibers: length 1mm, 28-38μm wide. Common pulping method: kraft. Not in common use as a paper fiber.
==Resources and Citations==
* The Dictionary of Paper, American Paper Institute, New York, Fourth Edition, 1980
* Kribs, Commercial Foreign woods on the American market
* Marja-Sisko Ilvessalo-Pfäffli. Fiber Atlas: Identification of Papermaking Fibers (Springer Series in Wood Science). Springer, 1995. 
* Walter Rantanen. "Fiber ID Course." Integrated Paper Services. June 2013. Lecture.
Category:Materials database
Gneiss

== Description ==
A coarse-grain metamorphic rock with an irregular layered structure of varying mineral compositions and colors. Gneiss is similar in composition to granite but different in texture. In general, some bands are high in feldspar or quartz while others are higher in hornblende or mica. Gneiss stones are used in building construction and are often sold as granites.
== Synonyms and Related Terms ==
gneis (Esp.); gneiss (Fr., Ned.); gnaisse (Port.); Gneiss (Deut.)
==Resources and Citations==
* Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
* 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
* Frank A. Lent, Trade names and Descriptions of Marbles, Limestones, Sandstones, Granites and Other Building Stones Quarried in the United States Canada and other Countries., Stone Publishing Co, New York, 1925
* R.F.Symmes, T.T.Harding, Paul Taylor, Rocks, Fossils and Gems, DK Publishing, Inc., New York City, 1997
Category:Materials database
Goat

== Description ==
A ruminant mammal from the Capra family native to mountainous regions of Europe, the Americas, and Asia. Goats were domesticated for their milk, meat, and fur. Their horns are hollow and male goats typically have long chin hairs.
See also goat skiver, goat vellum, goatskin and goat hair.
== Synonyms and Related Terms ==
Ziegen (Deut.); cabra (Esp.); chèvre (Fr.); geit (Ned., Nor.); bode (Port.)
== Resources and Citations ==
* Encyclopedia Britannica, http://www.britannica.com Comment: "Goat." Accessed: 26 Apr. 2004 .
* Wikipedia: http://en.wikipedia.org/wiki/Goat (Accessed Nov. 2, 2005)
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
Category:Materials database
Goat hair

== Description ==
Fine, smooth hair from any of several species of goats, such as Capri hircus. Goat hair can be white, gray, or black. It has been used to make yarn and to make artist and cosmetic brushes. Goat hairs do not point well since they have a blunt tip (Pinney 1999). They are typically used in Oriental brushes and inexpensive school artist brushes (Pinney 1999).
== Additional Images ==
File:Malegoatwp2.jpg|Goat (genus Capra)
File:goatlarge.jpg|Goat hair
File:805-4954.jpg|White Goat Hair Brushes
==Resources and Citations==
* Zora Sweet Pinney, 'A Handle on the Terms used for Artists' Brushes: The Indispensable Tools' unpublished glossary, 1999.
* Encyclopedia Britannica, http://www.britannica.com Comment: "goat" [Accessed October 16, 2003].
* Edward Reich, Carlton J. Siegler, Consumer Goods: How to Know and Use Them, American Book Company, New York City, 1937
* Zora Sweet Pinney, 'A Handle on the Terms used for Artists' Brushes', unpublished glossary, 1999
* Wikipedia: http://en.wikipedia.org/wiki/Goat (Accessed Nov. 2, 2005)
Category:Materials database
Goat vellum

== Description ==
A fine, white parchment made from untanned goatskin. Skins for vellum typically come from newborn or stillborn animals. Vellum is made by cleaning, dehairing, scraping and stretching the skin until a smooth, thin semitransparent page is obtained. The final smoothing step involves polishing with pumice or talc to create a smooth writing surface. Vellum is also made from calfskin and sheepskin.
== Synonyms and Related Terms ==
vitela de cabra (Esp.); perkament van geit (Ned);
Category:Materials database
Goatskin

== Description ==
Term used for both the unprocessed skin and the tanned leather made from a goat of the genus Capra. From the 11th century, the Moors produced famous soft, fine leather from goatskins tanned with sumac. Moroccan goatskin leather was commonly used in book bindings from the early 16th century. Currently goatskin leather is still produced in England from hides imported from the Middle East, India and Africa. Most goatskins are vegetable tanned or chrome tanned. They are still used in bookbinding since goatskin tends to be stronger, denser and longer wearing than sheepskin. Goatskins are also used for shoe uppers, gloves, and linings.
== Synonyms and Related Terms ==
goat skin; kidskin (U.S.); piel de cabra (Esp.); cuir de chèvre (Fr.); pele de cabra (Port.); geitenhuid (Ned); casablanca (Morocco); mogador; marrakech (Spain); capeskin (South Africa); Mocha suede (Arabia); herrar (Ethipia); patna (India); madra (India); punjab (India); cordova (Brazil); pernambuco (Brazil); tampico (Mexico)
== Physical and Chemical Properties ==
Has tiny pin-point holes in a row, usually in groups of three.
== Resources and Citations ==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 433
* Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
* Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
* Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
* Edward Reich, Carlton J. Siegler, Consumer Goods: How to Know and Use Them, American Book Company, New York City, 1937
Category:Materials database
Gobaishi (Chinese sumac) - left (68 L)

[[[SliderGallery rightalign|Uemura_04-23-2009_068.jpg~Normal]]]{| class="wikitable"
|-	
! scope="row"|Museum number
| 68
|-	
! scope="row"|Uemura number / title
| ; "Haze-some 25"
|-	
! scope="row"|Folder location
| 1st shelf
|-	
! scope="row"|Sample location
| left (68 L)
|-	
! scope="row"|Fiber type
| silk
|-	
! scope="row"|Color
| black
|-	
! scope="row"|Dyestuff (Japanese common name)
| 五倍子 : Gobaishi
|-	
! scope="row"|Dye (English common name)
| Chinese sumac
|-	
! scope="row"|Dyestuff (botanical name)
| Rhus chinensis (Mill.) T. Yamaz. (R. chinensis Mill.)
|-	
! scope="row"|Plant part
| gall /dried
|-	
! scope="row"|Dyestuff extraction
| boiled in water
|-	
! scope="row"|Auxiliary agent in dye bath
| -
|-	
! scope="row"|Mordant
| iron
|-	
! scope="row"|Other auxiliary agent
| ash water
|-	
! scope="row"|Uemura's date
| Kyoto Murasakino
|}
Category:Uemura dye archive
Gobaishi (Chinese sumac) - left (69 L)

[[[SliderGallery rightalign|Uemura_04-23-2009_069.jpg~Normal]]]{| class="wikitable"
|-	
! scope="row"|Museum number
| 69
|-	
! scope="row"|Uemura number / title
| ; "Haze-some 25"
|-	
! scope="row"|Folder location
| 1st shelf
|-	
! scope="row"|Sample location
| left (69 L)
|-	
! scope="row"|Fiber type
| cotton
|-	
! scope="row"|Color
| black
|-	
! scope="row"|Dyestuff (Japanese common name)
| 五倍子 : Gobaishi
|-	
! scope="row"|Dye (English common name)
| Chinese sumac
|-	
! scope="row"|Dyestuff (botanical name)
| Rhus chinensis (Mill.) T. Yamaz. (R. chinensis Mill.)
|-	
! scope="row"|Plant part
| gall /dried
|-	
! scope="row"|Dyestuff extraction
| boiled in water
|-	
! scope="row"|Auxiliary agent in dye bath
| -
|-	
! scope="row"|Mordant
| lime water; iron
|-	
! scope="row"|Other auxiliary agent
| -
|-	
! scope="row"|Uemura's notes
| Note: if ash water was used instead of lime water, the resultant color of the dyed fabric with iron mordant would become less red.
|-	
! scope="row"|Uemura's date
| Kyoto
|}
Category:Uemura dye archive
Gobaishi (Chinese sumac) - right (68 R)

[[[SliderGallery rightalign|Uemura_04-23-2009_068.jpg~Normal]]]{| class="wikitable"
|-	
! scope="row"|Museum number
| 68
|-	
! scope="row"|Uemura number / title
| ; "Haze-some 25"
|-	
! scope="row"|Folder location
| 1st shelf
|-	
! scope="row"|Sample location
| right (68 R)
|-	
! scope="row"|Fiber type
| silk
|-	
! scope="row"|Color
| gray
|-	
! scope="row"|Dyestuff (Japanese common name)
| 五倍子 : Gobaishi
|-	
! scope="row"|Dye (English common name)
| Chinese sumac 
|-	
! scope="row"|Dyestuff (botanical name)
| Rhus chinensis (Mill.) T. Yamaz. (R. chinensis Mill.)
|-	
! scope="row"|Plant part
| gall /dried
|-	
! scope="row"|Dyestuff extraction
| boiled in water
|-	
! scope="row"|Auxiliary agent in dye bath
| -
|-	
! scope="row"|Mordant
| iron
|-	
! scope="row"|Other auxiliary agent
| -
|-	
! scope="row"|Uemura's notes
| One of the dyeing techniques, which had been used since the 8th century AD in Japan. If a fabric would be only soaked in dye extract or dye extract mixed with ash water, the resultant colors would be pale yellow. ""
|-	
! scope="row"|Uemura's date
| Kyoto Murasakino
|}
Category:Uemura dye archive
Gobaishi (Chinese sumac) - right (69 R)

[[[SliderGallery rightalign|Uemura_04-23-2009_069.jpg~Normal]]]{| class="wikitable"
|-	
! scope="row"|Museum number
| 69
|-	
! scope="row"|Uemura number / title
| ; "Haze-some 25"
|-	
! scope="row"|Folder location
| 1st shelf
|-	
! scope="row"|Sample location
| right (69 R)
|-	
! scope="row"|Fiber type
| cotton
|-	
! scope="row"|Color
| pale yellowish brown
|-	
! scope="row"|Dyestuff (Japanese common name)
| 五倍子 : Gobaishi
|-	
! scope="row"|Dye (English common name)
| Chinese sumac
|-	
! scope="row"|Dyestuff (botanical name)
| Rhus chinensis (Mill.) T. Yamaz. (R. chinensis Mill.)
|-	
! scope="row"|Plant part
| gall /dried
|-	
! scope="row"|Dyestuff extraction
| boiled in water
|-	
! scope="row"|Auxiliary agent in dye bath
| -
|-	
! scope="row"|Mordant
| lime water
|-	
! scope="row"|Other auxiliary agent
| -
|-	
! scope="row"|Uemura's notes
| Note: if ash water was used instead of lime water, the resultant color of the dyed fabric with iron mordant would become less red.
|-	
! scope="row"|Uemura's date
| Kyoto
|}
Category:Uemura dye archive
Goethite

== Description ==
A yellow earth mineral primarily composed of iron hydroxide. Goethite was named in 1806 for Johann W. von Goethe, a German mineralogist and poet. It is an important iron ore that occurs naturally as an opaque crystalline material. Goethite has been ground and used as a pigment from the earliest times; it provides the yellow coloring in yellow ocher. Large clumps of goethite have also been carved for small ornamental items. It is mined at several locations such as Czech Republic, Germany (Saxony, Westphalia), England (Cornwall), France (Alsace-Lorraine), South Africa, Russia, Australia, Brazil, and the United States (Colorado, Lake Superior, southern Appalachians).
== Synonyms and Related Terms ==
yellow ocher; ferric hydroxide: iron hydroxide; hydrated ferric oxide; hydrated iron oxide; lepidocrocite (cubic crytstalline iron hydroxide); Pigment Yellow 43; CI 77492; Goethit (Deut.); Nadeleisenerz (Deut.); Gelber Ocker (Deut.); goethita (Esp.); ocre jaune (Fr.); goethite (Fr.); gkaititis (Gr.); kitrinh ochra (Gr.); ocra gialla (It.); gele oker (Ned.); goethiet (Ned.); goetite (Port.)
[[[SliderGallery rightalign|Goethite.TIF~FTIR (MFA)|Goethiteitaly1.jpg~Raman|PIG258.jpg~XRD]]]
== Physical and Chemical Properties ==
* Soluble in mineral acids. Insoluble in water and ethanol. 
* Orthorhombic crystals occurring in prisms
* Fibrous structure. 
* Perfect cleavage in one direction. 
* Fracture = uneven. 
* Luster = adamantine to dull. 
* Streak = yellow.
Composition 	FeO(OH)
Mohs Hardness	5.0 - 5.5
Density 	4.28 g/ml
==Resources and Citations==
* Mineralogy Database: Goethite
* Submitted information: Fred Gamble, October 2007
* Encyclopedia Britannica, http://www.britannica.com Comment: "goethite" [Accessed December 11, 2001]. (BW photo) ..
* C.W.Chesterman, K.E.Lowe, Audubon Society Field Guide to North American Rocks and Minerals, Alfred A. Knopf, New York, 1979
* Wikipedia: http://en.wikipedia.org/wiki/Goethite (Accessed Sept. 7, 2005)
* Jack Odgen, Jewellery of the Ancient World, Rizzoli International Publications Inc., New York City, 1982
* 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
Category:Materials database
Gokatu gamboge

== Description ==
A yellowish exudation obtained from the gokatu tree, Garcinia morella, native to Sri Lanka. Gokatu gamboge is locally used as a yellow pigment in water based paints. 
See gamboge.
== Synonyms and Related Terms ==
Garcinia morella; gamboge (Esp.); goma guta (Esp.); gomme gutte (Fr.); jaune du Cambodge (Fr.); gomma gutta (It); cambogia (It); Ceylon gamboge
==Resources and Citations==
* Artists' Pigments: A Handbook of their History and Characteristics, Elisabeth West FitzHugh, Oxford University Press, Oxford, Vol. 3, 1997 Comment: H.Schweppe, J.Winter, "Madder and Alizarin"
* B.D.Nandadeva, Materials used in Sri Lanka, personal communication, 1995
Category:Materials database
Gold ink

== Description ==
A bright gold-color ink prepared by mixing a gold-color metallic powder with an aqueous binder. Illuminated manuscripts prepared in the Middle Ages often have gold ink prepared from powdered gold. Currently, gold ink is prepared with a bronze powder.
== Synonyms and Related Terms ==
tinta de ouro (Port.)
==Resources and Citations==
* Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
* Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
Category:Materials database