Search results
Results from the WOW.Com Content Network
In 1970, South Africa produced 995 tonnes or 32 million ounces of gold, two-thirds of the world's production of 47.5 million ounces. [2] Production figures are for primary mine production. In the US, for example, for the year 2011, secondary sources (new and old scrap) exceeded primary production. [3]
By 1420, gold was sent to the Fondaco dei Tedeschi in Venice, thence to the mint and then used in trade with the Mamluk Sultanate. [18] The expansion of the Ottoman Empire into the Balkans had worsened the supply of bullion from mines to the rest of Europe, [ 19 ] [ 20 ] and this expansion exposed Venice to the silver famine until the discovery ...
By contrast, depletion gilding is a subtractive process whereby material is removed to increase the purity of gold that is already present on an object's surface. In depletion gilding, other metals are etched away from the surface of an object composed of a gold alloy by the use of acids or salts, often in combination with heat.
Keum-boo (Korean: 금부; also Geumbu, Kum-Boo or Kum-bu—Korean "attached gold") is an ancient Korean gilding technique used to apply thin sheets of gold to silver, to make silver-gilt. Traditionally, this technique is accomplished by first depleting a surface of sterling silver to bring up a thin layer of fine silver.
World's gold from 1845 to 2013, in tonnes (metric tons in the U.S.) World's gold holdings per capita, in grams Gold holdings are the quantities of gold held by individuals, private corporations, or public entities as a store of value, an investment vehicle, or perceived as protection against hyperinflation and against financial and/or political upheavals.
To change this template's initial visibility, the |state= parameter may be used: {{Gold reserves by country | state = collapsed}} will show the template collapsed, i.e. hidden apart from its title bar. {{Gold reserves by country | state = expanded}} will show the template expanded, i.e. fully visible.
Silver-gilt or gilded/gilt silver, sometimes known in American English by the French term vermeil, is silver (either pure or sterling) which has been gilded.Most large objects made in goldsmithing that appear to be gold are actually silver-gilt; for example, most sporting trophies (including medals such as the gold medals awarded in all Olympic Games after 1912) [1] and many crown jewels are ...
The HUI-gold ratio is an expression which compares the relative quantities of the NYSE Gold BUGS Index and the price of gold. The ratio is calculated by dividing the value of the NYSE Gold BUGS Index by the price of gold. [5] Investors use the HUI-gold ratio to illustrate the ever-shifting relative strength of the gold stocks versus gold. [6]