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Gold is a particularly non-reactive element and is not absorbed during the digestion process, [5] so it is safe to eat. However, there are no nutritional or health benefits associated with its consumption. Purity of edible gold must be 23–24 karats, above
The Krugerrand is the first modern example of measuring in "pure gold": it should contain at least 12 ⁄ 11 ounces of at least 11 ⁄ 12 pure gold. Other bullion coins (for example the British Sovereign) show neither the purity nor the fine-gold weight on the coin but are recognized and consistent in their composition.
The name is mostly applied informally to compositions between 20–80% gold and 80–20% silver, but these are strictly called gold or silver depending on the dominant element. Analysis of the composition of electrum in ancient Greek coinage dating from about 600 BC shows that the gold content was about 55.5% in the coinage issued by Phocaea.
Gold, a chemical element; Genomes OnLine Database; Global-scale Observations of the Limb and Disk, a NASA Explorer Mission of Opportunity; GOLD (parser), an open-source parser-generator of BNF-based grammars; Graduates of the Last Decade, an Institute of Electrical and Electronics Engineers program to garner more university level student members
People have been investing in gold for thousands of years. Some view it as an asset for protecting wealth.Others just like how it looks — using gold for jewelry, watches and other accessories.
Check out these fun 24-karat nuggets about gold. The post 13 Facts You Probably Never Knew About Gold appeared first on Reader's Digest.
Get ready to swoon as we showcase 16 stunning photos that prove 1950s jewelry was the ultimate showstopper. 1. French Designer Coco Chanel Boarding a Plane in Texas, 1957
Gold compounds are compounds by the element gold (Au). Although gold is the most noble of the noble metals , [ 1 ] [ 2 ] it still forms many diverse compounds. The oxidation state of gold in its compounds ranges from −1 to +5, but Au(I) and Au(III) dominate its chemistry.