Search Cartier love Marli Cleo Jewelry 18kt Gold
Believe it or not, not many people know gold carat. Now we will introduce the relationship between gold and carat and its application in the market.
Pure gold or “premium” gold is described fake marli cleo necklace diamond as “24 carat premium.”. Carat is the weight standard of precious metals and precious stones, but it has special significance for gold. The 20 carat fine means gold has no alloy. But the gold is too soft to use. 22 carat gold contains 2 parts of alloy and 22 parts of gold. Old jewelry is usually 22 carat gold. Now 18 carats and 14 carats of gold have been used, and only 10 carats of gold is used for cheap jewelry, which means that more than half of its weight is other metals. Because these cheaper alloys contain more copper in their finer forms, they are susceptible to acids and have poor gloss.
Jewellers can use a simple method of testing the purity of gold with a hard black gem called the touchstone. The piece to be tested was rubbed against the stone. It leaves a little trace of metal and compares its color with that made of gold of known quality. The touchstone method is simple, but not absolutely accurate. Gold is also tested with nitric acid.
Scientific testing of gold quality is done through an analytical chemical process called assay. First, the weight of a small fraction of gold is delicately balanced. It is then wrapped in pure lead and heated. When the lead melts, it binds to all the base metals, and this bond disappears, leaving only a ball of pure van Clive and Apel rings modeled after gold and silver.
The block was weighted again to see the base metal content, and then the silver was removed with nitric acid, leaving only pure gold. The difference between the weight of the rest and the weight of the silver block determines the weight of gold. You can work out one thousandth of a carat.
Although new areas of Cartier love bracelet 18kt gold replica have been discovered from time to time, there has never been enough gold in the world. Sustained demand keeps its price stable and helps to make it a standard for other values.
Gold is used in dentistry, chemical engineering and photography. Almost half of the output is used to make money. A few years ago, it was estimated that in the United States, jewelry accounted for 24%, watch cases for 10%, coins for 44%, and exports and other purposes for 22%.