Does anyone out there know of any gold mimic alloys in the world besides Korea's aluminum bronze, the UK's two formulas, and the US's Sacajawea and Presidential coins?
The UK Threepences were brass annealed to give a bright gold-like lustre when new. I don't know about the other coins mentioned. The Pobjoy mint produced coins in "Virenium" an alloy of copper, Zinc and Nickel, which resembled gold. The Romans made coins in what they termed "Orichalcum", which resembled gold and they valued very highly. Modern understanding is this was probably Brass and came about when the copper ore contained natural Zinc. See: https://en.wikipedia.org/wiki/Orichalcum
Its a pale bronze color with a plant on it that (as I recall) was rice. But, I do remember for sure looking it up and seeing it was aluminum and copper and maybe a little bit of something else.
Darn, I don't have a pic of the Korean aluminum bronze, but here're a couple Mexican and Italian gold-ish looking coins I forgot I had. This pic is just a rainbow I was putting together, from UK bronze all the way to Canadian nickel. I guess I need to add a whitish silver and that Korean coin to complete the spectrum.
This? But read the note... https://en.numista.com/978 A search for "numista aluminum bronze" has several interesting candidates.
That Canadian quarter is actually 80% silver...but you're going in the correct direction as the Canadian quarters were solid nickel from 1968-1999. For the last couple years I've been collecting/hoarding all solid nickel coins I get at 'reasonable' prices. Though the Canadian ones I'm hoarding for the next time I visit ONT as the border is only about an hour from my sister's house in the Flint, MI area and my in-laws in Metro Detroit.
The 10-Won coin that Krause (numismaster.com) USED TO claim exists ("KM# 33.2a") does not exist. This is an obvious error. The “Aluminum Bronze” coin doesn't exist. The KM #103 does exist. That is the new version of the 10-Won coin (or the “4th Series” 10-Won). This is the copper-clad aluminum coin. The description(s) from the Bank of Korea itself, in Korean and English: From here: http://www.bok.or.kr/eng/main/contents.do?menuNo=400121 and here: http://www.bok.or.kr/portal/main/contents.do?menuNo=200385 Also… In this image, the rows in red are non-existent. The cells in yellow (33.2 and 103) do exist. The values on the far right are the mintages. That first yellow row, the 2006-dated "KM#33.2," does exist (the older 65% copper coin from 1983-2006).
