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  2. Colored gold - Wikipedia

    en.wikipedia.org/wiki/Colored_gold

    White gold is an alloy of gold and at least one white metal (usually nickel, silver, platinum or palladium). [5] Like yellow gold, the purity of white gold is given in karats. White gold's properties vary depending on the metals used and their proportions. A common white gold formulation consists of 90% wt. gold and 10% wt. nickel. [4] Copper ...

  3. L.G. Balfour Company - Wikipedia

    en.wikipedia.org/wiki/L.G._Balfour_Company

    The same or similar alloys are marketed as white Ultrium, in particular when used for class rings. The trademark rights are owned by Balfour. The trademark rights are owned by Balfour. Celestrium is more malleable than typical stainless steel, which allows it to be engraved, etched and pressed as easily as gold, but its strength and luster ...

  4. Palladium - Wikipedia

    en.wikipedia.org/wiki/Palladium

    Palladium has been used as a precious metal in jewelry since 1939 as an alternative to platinum in the alloys called "white gold", where the naturally white color of palladium does not require rhodium plating. Palladium, being much less dense than platinum, is similar to gold in that it can be beaten into leaf as thin as 100 nm (1 ⁄ 250,000 ...

  5. Precious metal - Wikipedia

    en.wikipedia.org/wiki/Precious_metal

    In jewelry, they are a cornerstone for crafting wedding bands, engagement rings, ... Rhodium daily price 1992-2022 Price of gold 1915-2022 Palladium prices 1977-2022.

  6. Good Delivery - Wikipedia

    en.wikipedia.org/wiki/Good_Delivery

    Good Delivery gold bar weighing 12.4 kilograms (400 ozt) Good Delivery silver bar weighing 31.1 kilograms (1,000 ozt) The Good Delivery specification is a set of rules issued by the London Bullion Market Association (LBMA) describing the physical characteristics of gold and silver bars used in settlement in the wholesale London bullion market. [1]

  7. Native metal - Wikipedia

    en.wikipedia.org/wiki/Native_metal

    Most gold is mined as native metal and can be found as nuggets, veins or wires of gold in a rock matrix, or fine grains of gold, mixed in with sediments or bound within rock. The iconic image of gold mining for many is gold panning, which is a method of separating flakes and nuggets of pure gold from river sediments due to their great density ...