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  2. File:Gold Spot Price per Gram from Jan 1971 to Jan 2012.svg

    en.wikipedia.org/wiki/File:Gold_Spot_Price_per...

    English: This chart shows the nominal price of gold along with the price in 1971 and 2011 dollars (adjusted based on the consumer price index). The historical gold price was obtained from www.igolder.com; CPI was obtained from www.rateinflation.com. The data is in section Chart Data.

  3. Gold plating - Wikipedia

    en.wikipedia.org/wiki/Gold_plating

    Gold plated - gold layer thickness greater than or equal to 0.5 micron; Heavy gold plated / Vermeil - gold layer thickness greater than or equal to 2.5 micron; Gold plated silver jewellery can still tarnish as the silver atoms diffuse into the gold layer, causing slow gradual fading of its color and eventually causing tarnishing of the surface ...

  4. Electroplating - Wikipedia

    en.wikipedia.org/wiki/Electroplating

    Electroplating of acid gold on underlying copper- or nickel-plated circuits reduces contact resistance as well as surface hardness. Copper-plated areas of mild steel act as a mask if case-hardening of such areas are not desired. Tin-plated steel is chromium-plated to prevent dulling of the surface due to oxidation of tin.

  5. Gold reserve - Wikipedia

    en.wikipedia.org/wiki/Gold_reserve

    Official U.S. gold reserve since 1900 Changes in Central Bank Gold Reserves by Country 1993–2014 Central 2005 and 2014. A gold reserve is the gold held by a national central bank, intended mainly as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, during the eras of the gold standard, and also as a store of value, or to support the value of ...

  6. Fineness - Wikipedia

    en.wikipedia.org/wiki/Fineness

    24-carat gold is pure (while 100% purity is very difficult to attain, 24-carat as a designation is permitted in commerce for a minimum of 99.95% purity), 18-carat gold is 18 parts gold, 6 parts another metal (forming an alloy with 75% gold), 12-carat gold is 12 parts gold (12 parts another metal), and so forth.

  7. Pure Gold Jewellers - Wikipedia

    en.wikipedia.org/wiki/Pure_Gold_Jewellers

    The company also has 200 stores in India. [1] The company's stores sell a variety of jewellery in diamonds, gold, platinum, Murano glass and precious stones. Founded [2] by Indian expatriate Firoz Merchant in 1989, the first Pure Gold Jewellers store was established in Dubai. Merchant has focused on gradual expansion of the brand's retail ...

  8. Electroless nickel immersion gold - Wikipedia

    en.wikipedia.org/wiki/Electroless_nickel...

    Electroless nickel immersion gold (ENIG or ENi/IAu), also known as immersion gold (Au), chemical Ni/Au or soft gold, is a metal plating process used in the manufacture of printed circuit boards (PCBs), to avoid oxidation and improve the solderability of copper contacts and plated through-holes.

  9. Atlas Jewellery - Wikipedia

    en.wikipedia.org/wiki/Atlas_Jewellery

    Atlas Jewellery is an Indian owned jewellery retailer headquartered in Dubai, with 41 stores across the Middle East, in the UAE, Oman, Qatar, Bahrain, Saudi Arabia, Kuwait and India. The company's stores have a large range of jewellery in the gold , diamond , pearl , and gemstone categories.

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