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https://www.thoughtco.com/composition-of-gold-alloys-608016
Dec 08, 2019 · When you buy gold jewelry, it isn't pure gold. Your gold is really an alloy, or mixture of metals. The purity or fineness of gold in the jewelry is indicated by its karat number—24 karat (24K or 24 kt) gold is as pure as gold gets for jewelry. Gold that is 24K is also called "fine gold" and is greater than 99.7% pure gold.Estimated Reading Time: 1 min
https://www.gold.org/about-gold/about-gold-jewellery
White gold compositions listed here are nickel free. Nickel-containing white gold alloys form a small/very small percentage of white gold alloys and generally contain other base metals such as copper and zinc. The following are the common standards of fineness that are used:.375 = 9 carat (England and Canada)
https://www.gia.edu/doc/Methods-for-Determining-Gold-Content-of-Jewelry-Metals.pdf
The gold content (also known as "finenes~'~) of karat gold is described in several ways: Percent (%) is simply the ratio of gold (by weight) to the total metal present, expressed as parts of 100. Thusl an alloy that is three parts gold and one part alloy metal is: 31(3+11= 314 - 75/100 = 75% (by weight)
https://www.callagold.com/education/gold-jewelry-alloys/
Mar 11, 2019 · Yellow Gold used in jewelry making is a gold alloy mix that consists of combining gold, copper and silver. Yellow gold purity is also measured in karats. Yellow gold is the only type of gold that can be used in jewelry making as 24-karats.Reviews: 66
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