About 270 results for ‘Gold’
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Gold
Gold is a chemical element with the symbol Au and an atomic number of 79. Gold is a dense, soft, shiny, malleable and ductile metal. Pure gold has a bright yellow color and luster traditionally considered attractive, which it maintains without oxidizing in air or water. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements solid under standard conditions. The metal therefore occurs often in free elemental (native) form, as nuggets or grains in rocks, in veins and in alluvial deposits. Less commonly, it occurs in minerals as gold compounds, usually with tellurium. Gold resists attacks by individual acids, but it can be dissolved by the aqua regia (nitro-hydrochloric acid), so named because it dissolves gold. Gold also dissolves in alkaline solutions of cyanide, which have been used in mining. Gold dissolves in mercury, forming amalgam alloys. Gold is insoluble in nitric acid, which dissolves silver and base metals, a property that has long been used to confirm the presence of gold in items, giving rise to the term the acid test. Gold has been a valuable and highly sought-after precious metal for coinage, jewelry, and other arts since long before the beginning of recorded history. Gold standards have been the most common basis for monetary policies throughout human history, being widely supplanted by fiat currency starting in the 1930's. The last gold certificate and gold coin currencies were issued in the U.S. in 1932. In Europe, most countries left the gold standard with the start of World War I in 1914 and, with huge war debts, failed to return to gold as a medium of exchange. Gold has also been frequently linked to a wide variety of symbolisms and ideologies. A total of 165,000 tonnes of gold have been mined in human history, as of 2009. This is roughly equivalent to 5.3 billion troy ounces or, in terms of volume, about 8500 m, or a cube 20.4 m on a side. The world consumption of new gold produced is about 50% in jewelry, 40% in investments, and 10% in industry. Besides its widespread monetary and symbolic functions, gold has many practical uses in dentistry, electronics, and other fields. Its high malleability, ductility, resistance to corrosion and most other chemical reactions, and conductivity of electricity led to many uses of gold, including electric wiring, colored-glass production and even gold leaf eating.
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BERCEAU / Donné par les Dames de Bordeaux, et où fut ppla...
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- Field(s):
- Ethnology
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- Portrayed subject:
- Bassinet
- Birth
- Crown (headgear)
- Feather
- Gold
- Henri, Count of Chambord
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- Date:
- 19th century
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1023 - NOTRE-DAME DE LAGHET. ENVIRON DE NICE - ROUTE DE L...
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- Field(s):
- Ethnology
- Photography
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- Portrayed subject:
- Bell tower
- Crown (headgear)
- Gold
- Landscape
- Mountain
- Overcoat
- …
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- Date:
- 20th century
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- Artist(s):
- Jean-Baptiste Belin
Vase d'or, fleurs et fruits
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- Artist(s):
- Jean-Baptiste Belin
Vase d'or, fleurs et buste de Louis XIV
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- Field(s):
- Painting
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- Portrayed subject:
- Cornucopia
- Cuirass
- Flower
- Gold
- Grape
- Louis XIV of France
- …
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- Date:
- 17th century
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Hercule obtenant de Diane la biche aux cornes d'or
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- Field(s):
- Painting
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- Portrayed subject:
- Bow and arrow
- Diana (mythology)
- Dog
- Gold
- Heracles
- Horn (anatomy)
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- Date:
- 19th century
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Fleurs dans un vase d'or
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- Field(s):
- Painting
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- Portrayed subject:
- Dahlia
- Flower bouquet
- Gold
- Peony
- Still life
- Tulip
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- Date:
- 17th century
- 18th century
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- Artist(s):
- Hyacinthe Rigaud
Louis XIV (1638-1715)
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- Field(s):
- Painting
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- Portrayed subject:
- Allegory
- Coronation
- Crown (headgear)
- Embroidery
- Fur
- Glove
- …
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- Date:
- 18th century
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- Artist(s):
- Hyacinthe Rigaud
Louis XIV, roi de France et de Navarre (1638-1715)
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- Field(s):
- Painting
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- Portrayed subject:
- Allegory
- Crown (headgear)
- Embroidery
- Fur
- Gold
- Justice
- …
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- Date:
- 18th century
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- Artist(s):
- Hyacinthe Rigaud
ELISABETH-CHARLOTTE DE BAVIERE, DUCHESSE D'ORLEANS, DITE ...
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- Field(s):
- Painting
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- Portrayed subject:
- Crown (headgear)
- Dress
- Embroidery
- Fur
- Gold
- Hairstyle
- …
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- Date:
- 18th century
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- Artist(s):
- René-Antoine Houasse
LOUIS XIV, ROI DE FRANCE ET DE NAVARRE (1638-1715)
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- Field(s):
- Painting
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- Portrayed subject:
- Clothing
- Embroidery
- Equestrianism
- Gold
- Horse
- Horse tack
- …
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- Date:
- 17th century
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- Artist(s):
- Hyacinthe Rigaud
Louis XIV, roi de France et de Navarre (1638-1715)
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- Field(s):
- Painting
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- Portrayed subject:
- Allegory
- Coronation
- Crown (headgear)
- Embroidery
- Fur
- Glove
- …
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- Date:
- 18th century
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- Artist(s):
- Thomas Couture
LA SOIF DE L'OR
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VASE D'OR ENTOURE D'UNE GUIRLANDE DE FLEURS ET DE FRUITS
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- Field(s):
- Painting
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- Portrayed subject:
- Flower
- Gold
- Still life
- Vase
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- Date:
- 18th century
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- Artist(s):
- Jean-Baptiste Belin
AIGUIERE D'OR, FLEURS ET FRUITS
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- Field(s):
- Painting
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- Portrayed subject:
- Flower
- Gold
- Grape
- Still life
- Vase
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- Date:
- 17th century
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AIGUIERE D'OR ET FLEURS DANS UNE ARCHITECTURE
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- Field(s):
- Painting
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- Portrayed subject:
- Flower
- Gold
- Still life
- Vase
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- Date:
- 17th century
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JUPITER ET DANAE
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- Field(s):
- Painting
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- Portrayed subject:
- Beatific vision
- Bed
- Bedroom
- Bow and arrow
- Danaë
- Fear
- …
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- Date:
- 16th century
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L'Adoration des mages
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- Field(s):
- Painting
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- Portrayed subject:
- Belshazzar
- Biblical Magi
- Camel
- Child
- Child Jesus
- Dog
- …
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- Date:
- 17th century
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- Artist(s):
- Nicolò Grassi
L'adoration des mages
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- Field(s):
- Painting
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- Portrayed subject:
- Child
- Child Jesus
- Gold
- Horse
- Joseph (son of Jacob)
- Mary (mother of Jesus)
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- Date:
- 17th century
- 18th century
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- Artist(s):
- Hyacinthe Rigaud
LOUIS XIV, ROI DE FRANCE
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- Field(s):
- Painting
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- Portrayed subject:
- Allegory
- Coronation
- Crown (headgear)
- Embroidery
- Fur
- Glove
- …
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- Date:
- 18th century
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LA VIERGE A L'ENFANT
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- Field(s):
- Painting
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- Portrayed subject:
- Book
- Bookbinding
- Chastity
- Child Jesus
- Fauteuil
- Gold
- …
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- Date:
- 18th century
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