May 6th, 2013
Posted in In the gold jewelry is used in alloys. Pure gold is little use, it is too soft, easily deformed and scratched. With the addition of other metals, gold in the alloy improves the physical characteristics and also changes color. Basic ligatures for jewelry alloys, silver, copper (for red, yellow and pink gold), as well as palladium and nickel (for white gold). Samples of gold.
Currently, the most common two systems samples of gold used in jewelry making: carat (U.S., Britain, Europe) and metric (Russia). In the metric (Russian) system of proof of gold is indicated in thousandths of mass proportions. For example, 585 sample means that the alloy 1000 contains 585 gold and 415 other metals. In carat (British) system, proof of gold is indicated in carats. 1 carat equals one-twenty-fourth of the mass of a gold alloy.
Pure gold on British system is referred to as 24-karat, 18 karat gold corresponds to a 750-carat, 9 carat – 375 probe, etc. In Russia, to create jewelry using gold 375, 500, 585, 750, 958 and 999. Metric System probes used for gold and for silver. Carat – just for the gold. At the jewelry superimposed impressions, which denotes the sample of gold. In Russia, the brand with the sample to decorate the House puts the assay control. Imported Jewelry branded under the laws of manufacturers. Gold color. In Russia, the most common red, white, yellow and pink gold, and the most popular – a red, often called 'normal'. In Europe and the United States is more common yellow gold. Red Gold – is the 'usual Russian' gold 585, has a slight reddish tinge. Rose gold looks like a red color but less saturated. Yellow gold has a bright yellow color that is closest to the color of pure gold without impurities. White gold is obtained by adding an alloy of palladium or nickel. Alloys with palladium have steel shade with nickel alloys – yellow. Also, white gold is obtained by coating the gold with rhodium, gold in color then the cold-blue.
Tags: Collectibles, hobbies & crafts
