黄金 wikipedia

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维基百科
https://zh.wikipedia.org/wiki/金
金 - 维基百科，自由的百科全书
AppearanceMetallic yellow
Phase at STPsolid
Melting point1337.33 K (1064.18 °C, 1947.52 °F)
Boiling point3243 K (2970 °C, 5378 °F)
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Wikipedia
https://en.wikipedia.org/wiki/Gold
Gold - Wikipedia
Overview
Characteristics
Chemistry
Origin
Occurrence
History
Production
Monetary use
Gold is a chemical element; it has the symbol Au (from the Latin word "aurum") and the atomic number 79. In its pure form, it is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of the noble metals. It is one of the least reactive chemical elements, being the second-lowest in the reactivity series. It is solid u…
Wikipedia · Text under CC-BY-SA license
维基百科
https://zh.wikipedia.org/wiki/黄金分割率
黄金分割率 - 维基百科，自由的百科全书
歷史
基本計算
與其他數學事項的關係
貴金屬分割
黃金比例是屬於數學領域的專有名詞，但最後涵蓋的內容不只是有關數學領域的研究，根据目前的文獻探討，我們可以說，黃金比的發現和如何演進至今仍是個謎。但有研究指出公元前六世紀古希臘的畢達哥拉斯學派研究過正五邊形和正十邊形的作圖，因此現代數學家推斷當時畢達哥拉斯學派已經觸及甚至掌握了黃金比的一些規則，也發現無理數，但由於其數字崇拜的宗教信仰拒絶承 …
See more on zh.wikipedia.org
- Estimated Reading Time: 15 mins
维基百科
https://zh.wikipedia.org/wiki/萊茵的黃金
萊茵的黃金 - 维基百科，自由的百科全书
WEB萊茵的黃金. 《 萊茵的黃金 》（ Das Rheingold ）是《尼伯龍根的指環》（ Der Ring des Nibelungen ）系列中四部歌劇的第一部，由瓦格纳作曲及編劇。《萊茵的黃金》 …
- Estimated Reading Time: 6 mins
维基百科
https://zh.wikipedia.org/wiki/黃金現貨
黃金現貨 - 维基百科，自由的百科全书
WEB黃金現貨 - 维基百科，自由的百科全书. 目录. 黃金現貨，又被稱為現貨黃金、倫敦金或者國際金，是一種金融衍生產品。其價格亦代表目前實物黃金的價格。曾經有專家稱為 …
- Estimated Reading Time: 3 mins
sothebys.com
https://www.sothebys.com/zh-hans/文章/黄金简史
黄金简史 | 珠寶 | Sotheby’s
WEBMar 18, 2020 · 黄金是世上最古老的奢华象征，在不同文化不同国度几乎毫无例外。几千年以来，黄金历经千锤百炼，熔炼成各种形状，加上各种装饰，成为甲冑、珠宝、工艺品 …
wikipedia.org
https://zh-classical.wikipedia.org/wiki/黃金
黃金 - 維基大典
WEB黃金 - 維基大典. 金者，罕有金屬化學元素也，符號 Au，原子序七十九，屬過渡金屬，亦為五金之首。自冶爐熔形之後，難以變更。質軟而色金黃、耀目。世所罕有，故 …
世界黄金协会
https://china.gold.org/about-gold
关于黄金 | World Gold Council
WEB黄金是一种贵金属，世界各地的人们出于不同的原因购买黄金，通常受本国社会文化因素、市场条件和宏观经济驱动因素的影响。阅读更多. 黄金如何开采：寿命周期. 黄金开采是 …
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世界黄金协会
https://china.gold.org/history-gold
The History of Gold | Records back to 1600 | World Gold Council
WEB黄金的历史. 黄金作为货币的职能和金本位制. 第二次世界大战爆发后，黄金失去了在发达经济体中作为货币的地位。二战结束时，固定汇率机制布雷顿森林货币体系建立。 1971 …
维基百科
https://zh.wikipedia.org/wiki/黄金巨匠
黄金巨匠 - 维基百科，自由的百科全书
WEB黃金巨匠（日语：オルフェーヴル，英語： Orfevre ），是日本純種競賽馬匹 [1] 。生涯活躍於中長途賽事，於2011年勝出所有經典三冠賽事，成爲日本賽馬史上第七匹三冠 …
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Gold jewelry brands
Cartier is a French luxury goods conglomerate that is well-known for its jewelry and watches, especially its Panthère and Tank collections. It uses gold as one of its main materials, along with platinum, diamonds, and other precious stones.
Cartier
Tiffany & Co. is an American luxury jewelry and specialty retailer that is famous for its blue boxes and its engagement rings. It uses gold in various forms, such as yellow, white, rose, and black, to create elegant and sophisticated designs.
Tiffany & Co.
Bulgari is an Italian luxury brand that is known for its bold and colorful jewelry, inspired by its Greek and Roman heritage. It uses gold as a base for most of its creations, often combining it with gemstones, enamel, and ceramic.
Bulgari
Harry Winston is an American luxury jeweler and watchmaker that is renowned for its high-end diamonds and rare gems. It uses gold as a complementary material to highlight its exquisite stones, as well as to craft intricate and artistic settings.
Harry Winston
Van Cleef & Arpels is a French luxury jewelry and watch company that is famous for its innovative and whimsical designs, such as the Zip necklace and the Alhambra motif. It uses gold in various shades and finishes, such as satin, hammered, and polished, to create dynamic and refined pieces.
Van Cleef & Arpels
Timeline
2600 BC
Gold used for jewelry in ancient Egypt
560 BC
First gold coins minted by King Croesus of Lydia
1848
California Gold Rush triggered by discovery at Sutter's Mill
1934
Gold Reserve Act established fixed price of gold at $35 per ounce
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Nearly all the gold on Earth came from meteorites that bombarded the planet over 200 million years after it formed.
Today, gold-alloy crowns are still used to cap worn-down teeth or to strengthen weakened teeth.
Gold was probably the first metal used by humans.
Because of its unique qualities, gold has been the one material that is universally accepted in exchange for goods and services.
Gold flakes were sometimes sprinkled on the food of the wealthy during the Middle Ages.
Common use
It is also, however, used extensively in jewellery, either in its pure form or as an alloy.
Gold is also used in medicine. The radioactive gold isotope Au-198 can be injected directly into the site of a tumor.
A thin layer of this metal is used on the windows of a large building for reflecting the heat of sun rays.
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Silver is a soft, lustrous, and ductile metal, with high thermal and electrical conductivity. It is a noble metal and a group 11 element, like gold. It also forms alloys with gold and other metals.
Silver
Copper is a reddish-orange, malleable, and ductile metal, with high thermal and electrical conductivity. It is a transition metal and a group 11 element, like gold. It also forms alloys with gold and other metals, such as brass and bronze.
Copper
Platinum is a silvery-white, dense, and ductile metal, with high resistance to corrosion and oxidation. It is a noble metal and a group 10 element, adjacent to gold in the periodic table. It also forms alloys with gold and other metals, such as white gold and platinum group metals.
Platinum
Palladium is a silvery-white, soft, and ductile metal, with high catalytic activity and electrical conductivity. It is a noble metal and a group 10 element, adjacent to gold in the periodic table. It also forms alloys with gold and other metals, such as white gold and palladium group metals.
Palladium
Iridium is a silvery-white, hard, and brittle metal, with high density and resistance to corrosion and oxidation. It is a noble metal and a group 9 element, next to gold in the periodic table. It also forms alloys with gold and other metals, such as white gold and iridium group metals.
Iridium
Image: Getty Images. Data: Wikipedia · thoughtco.com · mentalfloss.com · britannica.com · ducksters.com · rsc.org · livescience.com · byjus.com
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