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Message: <blockquote data-quote="lordxaviar" data-source="post: 5552354" data-attributes="member: 56673">Pure gold is too soft for day-to-day monetary use and is typically  hardened by alloying with copper, silver or other base metals. The gold  content of alloys is measured in <a href="http://en.wikipedia.org/wiki/Carat_%28purity%29" target="_blank">carats</a>  (k). Pure gold is designated as 24k. English gold coins intended for  circulation from 1526 into the 1930s were typically a standard 22k alloy  called <a href="http://en.wikipedia.org/wiki/Crown_gold" target="_blank">crown gold</a>,  for hardness (American gold coins for circulation after 1837 contained  the slightly lower amount of 0.900 fine gold, or 21.6 kt).as for the rest is this what we ended ontin 4gold 5alchemical silver 8electrum 9copper 7bronze 9platinum 8coin silver 6this is really working well, lets finalize this...have we left any out?</blockquote>