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Rose gold is a gold-copper alloy [8] widely used for specialized jewelry. Rose gold, also known as pink gold and red gold, was popular in Russia at the beginning of the 19th century, and was also known as Russian gold. [9] Rose gold jewelry is becoming more popular in the 21st century, and is commonly used for wedding rings, bracelets, and ...
In 2012, the Perth Mint produced a 1-tonne coin of 99.99% pure gold with a face value of $1 million AUD, making it the largest minted coin in the world with a gold value of around $50 million AUD. [2] China has produced coins in very limited quantities (less than 20 pieces minted) that exceed 8 kilograms (260 ozt) of gold.
In metallurgy, titanium gold (Ti-Au or Au-Ti) refers to an alloy consisting of titanium and gold. Such alloys are used in dentistry , [ 1 ] [ 2 ] ceramics and jewelry . [ 3 ] Like many other alloys, titanium gold alloys have a higher yield strength, tensile strength , hardness , and magnetism than either of its constituent metals.
Although gold was used for articles, the regulation was silent on standards and hallmarking for gold. [9] In Switzerland today, [ 10 ] only precious metal watch cases must be hallmarked. [ 11 ] The hallmarking of other items including silverware and jewelry is optional.
Amulet from the tomb of Tutankhamun, fourteenth century BC, incorporating the Eye of Horus beneath a disk and crescent symbol representing the moon [2]. The ancient Egyptian god Horus was a sky deity, and many Egyptian texts say that Horus's right eye was the sun and his left eye the moon. [3]
Heart scarabs were often hung around the mummy's neck with a gold wire and the scarab itself was held in a gold frame. The base of a heart scarab was usually carved, either directly or on a gold plate fixed to the base, with hieroglyphs which name the deceased and repeat some or all of spell 30B from the Book of the Dead. The spell commands the ...
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