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https://www.thoughtco.com/composition-of-gold-alloys-608016
Dec 08, 2019 · Color of Gold: Alloy Composition: Yellow Gold (22K) Gold 91.67% Silver 5% Copper 2% Zinc 1.33%: Red Gold (18K) Gold 75% Copper 25%: Rose Gold (18K) Gold 75% Copper 22.25% Silver 2.75%: Pink Gold (18K) Gold 75% Copper 20% Silver 5%: White Gold (18K) Gold 75% Platinum or Palladium 25%: White Gold (18K) Gold 75% Palladium 10% Nickel 10% Zinc 5%: Gray-White Gold …Estimated Reading Time: 1 min
https://www.callagold.com/education/gold-jewelry-alloys/
Mar 11, 2019 · What Alloy Metals are in White Gold and Palladium Alloy Jewelry? 14kt White Gold - Palladium Alloy 58.33% pure yellow gold (AU) 32.17% silver (Ag) 9.50% palladium (Pd) 18kt White Gold - Palladium Alloy 75% pure yellow gold (AU) 25% palladium or platinum. Information from Innovateus.com. Yellow Gold for Jewelry …Reviews: 66
https://www.gold.org/about-gold/about-gold-jewellery
The process of alloying—mixing other metals with pure 24 carat gold—gives malleable gold more durability, but can also be used to change its colour. White gold is created through alloying pure gold with white metals such as palladium or silver. In addition it is usually plated with rhodium to create a harder surface with a brighter shine.
https://patents.google.com/patent/US6929776B1/en
A jewellery alloy, having a substantially purple hue and sufficient toughness to withstand Rockwell 3 hardness testing with a 100 kg load without shattering, comprises 76 to 83.5 wt % gold and 16.5...Cited by: 2
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