
Details of what is gold and how or why Gold Jewelry is made in different Karats:
Gold: Gold is a type of Precious metal whose chemical symbol is AU
Temperature: The melting temperature of Gold is slightly lower than that of copper at 1945 ° F or 1063 ° C ( Iron is 2802°F and Copper is 1981°F )
Specific Gravity: of gold is 19.32 Density: One cubic inch of pure gold weighs 10.18 troy ounces. Weight: Gold for Jewelry purposes is weighed in Grams, Pennyweight (DWT) or Ounces (troy) 1 Troy ounce is equal to 31.10348 grams or 20 DWT (pennyweight) 1 DWT (pennyweight) is equal to 1.555 grams or 0.05 troy ounces. Karat: The most popular jewelry made in gold is 10 karat,14 karat, 18 karat and 22 karat gold Jewelry.
Purity: The purest form of Gold considered 24 karats is equal to roughly 99.9 percent purity
Karat: When we say 24kt or 24k Gold jewelry, we mean that all the 24 parts in the gold are just pure gold without traces of any other metal(s) or 99.9 percent pure. When we say 22kt or 22k Gold Jewelry we mean that 22 parts of the jewelry, is gold and the balance 2 parts are some other metal(s) or equal to 91.3 percent gold plus 8.6 percent of some other metal alloy When we say 18Kt or 18k Gold Jewelry, we mean that 18 parts of the jewelry is gold and the balance 6 parts is some other metal or equal to about 75 percent gold plus 25 percent of some other metal alloy We can roughly state that each Karat is equal to approximately 4.1625 percent. The difference of the other metal or alloys of the metal, gives the jewelry its hardness and color. We can state that 24 Karat is the softest and 10 karat the hardest, because 10kt would have 41.6 percent gold and the balance would be other metals which are mostly harder than gold.. The color from the other metals enhances the beauty of the jewelry as the case may be, white gold, yellow gold, red gold etc.
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