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Nuggets are usually 20.5 to 22 karat (k) purity, meaning they are 83% to 92% gold by mass. Gold nuggets in Australia are often 23 k or slightly higher, while Alaskan nuggets are usually at the lower end of the spectrum. Purity can be roughly assessed by nugget color: the richer and deeper the orange-yellow, the higher the gold content.
The standard gold bar held and traded internationally by central banks and bullion dealers is the Good Delivery bar with a 400 ozt (12.4 kg; 27.4 lb) nominal weight. However, its precise gold content is permitted to vary between 350 ozt (10.9 kg; 24.0 lb) and 430 ozt (13.4 kg; 29.5 lb). The minimum purity required is 99.5% gold.
For example, a gold alloy of 127 ⁄ 128 fineness (that is, 99.2% purity) could have been described as being 23-karat, 3-grain, 1-quart gold. The carat fractional system is increasingly being complemented or superseded by the millesimal system, described above for bullion, though jewelry generally tends to still use the carat system.
A gold nugget is a naturally occurring piece of native gold. Watercourses often concentrate nuggets and finer gold in placers . Nuggets are recovered by placer mining , but they are also found in residual deposits where the gold-bearing veins or lodes are weathered.
24 Carat Gold or 24 Karat Gold may refer to: Karat, a measure of the purity of gold; 24 Carat Gold, by Scooter, 2002;
Precious metals such as gold are currently having a solid ride. Year to date, gold prices are up 31.72% to $2,750 an ounce. Silver and platinum prices are up 41% and 3%, respectively.
Electrum was often referred to as "white gold" in ancient times but could be more accurately described as pale gold because it is usually pale yellow or yellowish-white in color. The modern use of the term white gold usually refers to gold alloyed with any one or a combination of nickel, silver, platinum and palladium to produce a silver ...
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