Crown gold
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Crown gold is a 22
Alloying metal
The alloying metal in England is traditionally restricted to
Circulating coins
In the United States until 1834, gold circulating coins were minted in 22 kt. crown gold using about 6% silver as well as copper. From 1834, the fineness of U.S. coin gold was decreased from the 22 kt crown gold standard to 0.8992 fine (21.58 kt); and in 1837 to 0.900 fine (21.60 kt exactly). This 90% gold–copper alloy continued in the U.S. from 1837 until gold coins were removed from circulation in the U.S. in 1933.[citation needed]
The South African Krugerrand, first produced in 1967, is produced in the traditional crown gold recipe of 22 kt gold, with the remainder copper, because it was originally intended to circulate as currency.
Bullion coins
Most current gold coinage is intended as bullion and not designed for circulation, so the requirement for a hard alloy is much less. Gold bullion coins are commonly 24 kt, 0.999, 0.9999, or even 0.99999 fine in the case of the Canadian Gold Maple Leaf. Some bullion coins have stayed with the traditional crown gold standard, including the British sovereign,[2] the Krugerrand, and American Gold Eagles.[3]
See also
References
- ^ Dodd, Agnes (1911). History of Money in the British Empire & the United States. Archived from the original on 2023-11-11. Retrieved 2020-03-25.
- ^ "Discover the Sovereign". The Royal Mint. Archived from the original on 2020-04-17. Retrieved 2020-03-25.
- ^ "American Eagle Gold Bullion Coins". U.S. Mint. Archived from the original on 2020-03-25. Retrieved 2020-03-25.