Beautiful gold chains

Gold is a very precious metal and a chemical element that has the symbol Au and atomic number 79 in the periodic

Purification of gold are being newly separation of dust and silt and other impurities by strong water currents to remove sand and alluvial minutes, and the remaining minutes of gold in place due to the high density of gold has been used mercury to melt the gold without sand and silt. Then concludes the final gold of mercury distillation. It also draws a presentation at the copper gold and silver mining. There are chemical methods to extract gold, which tightens its way cyanide, or melt the silver alloys in concentrated sulfuric acid, being purified gold with nitric acid first, then electrolysis.

Gold is a very precious metal and a chemical element that has the symbol Au and atomic number 79 in the periodic table. The so-called natural consignment before hitting by donation. Lin, a yellow color and shiny, use as a critique of the many peoples and civilizations and nations, as it is used in ornaments and jewelery industry. Resides in the nature of the granules body within the rocks in the river bottoms, or in the form of veins in the ground, and often there is gold with other metals such as copper, lead, and discovered the largest mass of gold in Australia in 1896, he weighed 2,280 an ounce, and the advantage of gold lack of corrosion and softness It is also more chemical elements intensity

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Golden Necklace

Necklace or chain or the contract is a type of jewelry and clothing placed around the neck. The necklaces

Necklace or chain or the contract is a type of jewelry and clothing placed around the neck. The necklaces are usually made of a series of precious metal, and often high-value, which may be -or not - as Rrkizh attached to them decorative elements and accessories (such as strings of pearl, chains, etc.) .. usually used stones precious or semi-precious stones, precious stones or wooden Oaljlod and shells, ect.

Necklace or chain or the contract is a type of jewelry and clothing placed around the neck. The necklaces are usually made of a series of precious metal, and often high-value, which may be -or not - as Rrkizh attached to them decorative elements and accessories (such as strings of pearl, chains, etc.) .. usually used stones precious or semi-precious stones, precious stones or wooden Oaljlod and shells, ect

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Colored rings gold

alnhac White and the production system and the yellow, green and red gold; usually malleable alloy

While the color of pure gold is yellow, the color of gold can appear more than color. These different colors are due to mixing and casting gold with several different chemical elements give this diversity chromatography according to different quantities cast together.

Category

Can be split colored gold to three different categories: [1]

     Gold-silver -alnhac White and the production system and the yellow, green and red gold; usually malleable alloy

     In the intermetallic compound nights, and production of gold medals blue and purple, as wellas other colors.
as other colors. These are usually fragile but can be used with gems and bushings

     Surface oxide layers, such as black gold, mechanical properties depend on the bulk alloys.

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