1. Laofengxiang Laofengxiang silver house is the only century old shop in China. Laofengxiang gold jewelry has classic style and excellent quality, which is deeply loved by the public. In particular, its golden wedding jewelry is very popular with newlyweds 2. Chow Tai Fook founded in1929, Chow Tai Fook is the most famous jewelry brand in Chinese Mainland. It pioneered 999.9 pure gold jewelry and became a model in the gold jewelry industry. In the early 1990s, Chow Tai Fook decided to adopt a "buy now price" with reasonable costs and profits, which became another synonym for "genuine goods at a reasonable price" 3. Ancient temple the gold of the old temple originated in Shanghai. It not only has a profound foundation, but also has its own unique cultural connotation. In terms of technology, Laomiao gold jewelry has a beautiful shape, creating many classic styles of gold jewelry. In terms of price, it is very real. It can be said to be gold jewelry with good quality and low price 4. Zhou Shengsheng Zhou Shengsheng was born in 1934 in Guangzhou. Like Chow Tai Fook, he is also a famous jewelry brand in China. Zhou Shengsheng's gold jewelry is not only novel in shape, but also well made, which is warmly sought after by many young people extended information: gold is the elemental form of chemical element gold. It is a soft, golden and corrosion-resistant precious metal. Gold is a rarer, more precious and more valuable metal. Gold is generally expressed in ounces in the world. In ancient China, "Liang" was used as a gold unit. It is a very important metal. It is not only a special currency for reserve and investment, but also an important material for jewelry industry, electronics industry, modern communication, aerospace industry and other sectors the chemical symbol of gold is Au, and the financial English code is XAU or gold. AU's name comes from the story of Aurora, the goddess of dawn in Roman mythology, which means shining dawn as of October 12, 2021, the price of gold was 1760 US dollars / ounce physical properties 1. Color: the steam emitted by gold melting is yellow green; In the smelting process, the gold powder is usually brown; If it is cast into a thin sheet, it can emit green light 2. Extensibility: extremely strong. An ounce of gold can pull 50 miles. Its ductility makes it easy to cast. It's a good choice for jewelry. Gold is the strongest of all metals 3. Ductility: ranks first. It causes extremely thin gold sheets to roll up easily. An ounce of gold can be hammered as thin as 4 million feet thick and 100 square feet large. The ancients hammered it into thin slices and paved temples and palaces for decoration. All these can show the elasticity and ductility of gold chemical properties gold (transition metal), gold code XAU_ USD, XAU is the chemical element code crystal structure: face centered cubic structure atomic weight: 196.96654 shell structure: 2, 8, 18, 32, 18, 1 electronic layout: [Xe] 4f14 5d10 6S1 comprehensive price: 1 3 melting point: 1064.43 ℃ boiling point: 2808 ℃ electronegativity: 2.54 covalent radius: 1.34a ionic radius: 0.85 ( 3) a atomic radius: 1.79a atomic volume: 10.2cc/mol primary ionization potential: 9.2257 V secondary ionization potential: 20.521 V oxidation state: (3) 1 density at 293k: 19.32g/cm3 specific heat capacity: 0.128j/gk heat of vaporization: 334.4kj/mol heat of fusion: 12.55kj/mol conductivity: 0.452x106cm · Ω thermal conductivity: 3.17w/cmk elastic coefficient: 78.3 X103 MPa thermal expansion coefficient: 14.2x10-6/k lattice parameter: 4.0786a Mohs hardness: 2.5
Jewelry with diamond rings is the best
1. Laofengxiang
Laofengxiang silver house is the only century old shop in China. Laofengxiang gold jewelry has classic style and excellent quality, which is deeply loved by the public. In particular, its golden wedding jewelry is very popular with newlyweds
2. Chow Tai Fook
founded in1929, Chow Tai Fook is the most famous jewelry brand in Chinese Mainland. It pioneered 999.9 pure gold jewelry and became a model in the gold jewelry industry. In the early 1990s, Chow Tai Fook decided to adopt a "buy now price" with reasonable costs and profits, which became another synonym for "genuine goods at a reasonable price"
3. Ancient temple
the gold of the old temple originated in Shanghai. It not only has a profound foundation, but also has its own unique cultural connotation. In terms of technology, Laomiao gold jewelry has a beautiful shape, creating many classic styles of gold jewelry. In terms of price, it is very real. It can be said to be gold jewelry with good quality and low price
4. Zhou Shengsheng
Zhou Shengsheng was born in 1934 in Guangzhou. Like Chow Tai Fook, he is also a famous jewelry brand in China. Zhou Shengsheng's gold jewelry is not only novel in shape, but also well made, which is warmly sought after by many young people
extended information:
gold is the elemental form of chemical element gold. It is a soft, golden and corrosion-resistant precious metal. Gold is a rarer, more precious and more valuable metal. Gold is generally expressed in ounces in the world. In ancient China, "Liang" was used as a gold unit. It is a very important metal. It is not only a special currency for reserve and investment, but also an important material for jewelry industry, electronics industry, modern communication, aerospace industry and other sectors
the chemical symbol of gold is Au, and the financial English code is XAU or gold. AU's name comes from the story of Aurora, the goddess of dawn in Roman mythology, which means shining dawn
as of October 12, 2021, the price of gold was 1760 US dollars / ounce
physical properties
1. Color:
the steam emitted by gold melting is yellow green; In the smelting process, the gold powder is usually brown; If it is cast into a thin sheet, it can emit green light
2. Extensibility:
extremely strong. An ounce of gold can pull 50 miles. Its ductility makes it easy to cast. It's a good choice for jewelry. Gold is the strongest of all metals
3. Ductility:
ranks first. It causes extremely thin gold sheets to roll up easily. An ounce of gold can be hammered as thin as 4 million feet thick and 100 square feet large. The ancients hammered it into thin slices and paved temples and palaces for decoration. All these can show the elasticity and ductility of gold
chemical properties
gold (transition metal), gold code XAU_ USD, XAU is the chemical element code
crystal structure: face centered cubic structure
atomic weight: 196.96654
shell structure: 2, 8, 18, 32, 18, 1
electronic layout: [Xe] 4f14 5d10 6S1
comprehensive price: 1 3
melting point: 1064.43 ℃
boiling point: 2808 ℃
electronegativity: 2.54
covalent radius: 1.34a
ionic radius: 0.85 ( 3) a
atomic radius: 1.79a
atomic volume: 10.2cc/mol
primary ionization potential: 9.2257 V
secondary ionization potential: 20.521 V
oxidation state: (3) 1
density at 293k: 19.32g/cm3
specific heat capacity: 0.128j/gk
heat of vaporization: 334.4kj/mol
heat of fusion: 12.55kj/mol
conductivity: 0.452x106cm · Ω
thermal conductivity: 3.17w/cmk
elastic coefficient: 78.3 X103 MPa
thermal expansion coefficient: 14.2x10-6/k
lattice parameter: 4.0786a
Mohs hardness: 2.5