"Gold" alloys?

Discussion in 'World Coins' started by BronzeAge, Dec 14, 2025.

  1. BronzeAge

    BronzeAge Member

    Does anyone out there know of any gold mimic IMG_20251214_172558887~2.jpg alloys in the world besides Korea's aluminum bronze, the UK's two formulas, and the US's Sacajawea and Presidential coins?
     
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  3. gronnh20

    gronnh20 Well-Known Member

    There are some Mexican bi-metal coins that have the color you are referencing.
     
  4. Burton Strauss III

    Burton Strauss III Brother can you spare a trime? Supporter

  5. PaddyB

    PaddyB Eccentric enthusiast

    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
     
  6. gxseries

    gxseries Coin Collector

    You've got aluminum bronze from Australia for one and two dollar coins
     
  7. mlov43

    mlov43 주화 수집가

    What is "Korea's aluminum bronze?" Which coins are these?
     
  8. BronzeAge

    BronzeAge Member

    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.
     
  9. BronzeAge

    BronzeAge Member

    Thanks for all your replies, I'll be sure to look for some of these.
     
  10. BronzeAge

    BronzeAge Member

    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.
    _20210415_164042.JPG
    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.
     
  11. Burton Strauss III

    Burton Strauss III Brother can you spare a trime? Supporter

    This? But read the note...

    https://en.numista.com/978

    A search for "numista aluminum bronze" has several interesting candidates.
     
  12. Mr. Flute

    Mr. Flute Well-Known Member

    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.
     
  13. mlov43

    mlov43 주화 수집가

    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:

    [​IMG]
    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.

    [​IMG]
    That first yellow row, the 2006-dated "KM#33.2," does exist (the older 65% copper coin from 1983-2006).
     
  14. mlov43

    mlov43 주화 수집가

    Nope.
     
  15. Michael K

    Michael K Well-Known Member

    With silver sky high prices the melt value on that 1948 Canadian quarter
    is almost $10.
     
  16. BronzeAge

    BronzeAge Member

    Found it. Maybe it's Vietnamese or Philippine. It's the yellow gold color coin second from the left. IMG_20251219_155117914~2.jpg IMG_20251219_155042466~2.jpg
     
  17. mlov43

    mlov43 주화 수집가

    That's a 50-Won coin. 70% Copper, 18% Zinc, 12% Nickel.
    And it isn't "yellow color."
    I'm telling you: The Korean "aluminum bronze" coin does NOT exist. That was a Krause error. They contacted me to clean up their listings for the "Korea, South" section of their catalog after they migrated to numismaster.com. They printed that error in their last three or four annual issues of the Standard Catalog. The paper catalogs will no longer be printed. If you go to their site, you'll notice that supposed "aluminum bronze" coin is no longer there.
     
  18. Burton Strauss III

    Burton Strauss III Brother can you spare a trime? Supporter

    OK, Mark, NOBODY is questioning your experience with Korean coins. Pat yourself on the back again and again and ignore the other line of search I suggested...

    Yep. Krause is dead. In the F+W bankruptcy sale, the data (via the magazines) went to Active Interest Media (numismaster), and the books went to Bertlesman via Penguin, which cancelled the "next" version and has no interest (and no data) for a new printed/PDF catalog.

    But there are dozens of Aluminum-Bronze coins listed in the Numista catalog, including

    Nordic Gold - https://scandinaviafacts.com/what-is-nordic-gold/

    upload_2025-12-20_8-23-56.png


    I also said

    "A search for "numista aluminum bronze" has several interesting candidates." many of which, in their photos, appear to be golden color. Ignoring patterns...

    Chile

    https://en.numista.com/2844 - 1 Peso, Aluminium bronze (92% Copper, 6% Aluminium, 2% Nickel)
    https://en.numista.com/5426 - 1 Peso, Aluminium bronze (92% Copper, 2% Aluminium, 6% Nickel)

    Egypt

    https://en.numista.com/5963 - 10 Milliemes, Aluminium bronze (Copper 92%, Aluminium 8%)

    France

    https://en.numista.com/178646 - 100 Francs, Aluminium bronze

    Iran

    https://en.numista.com/19034 - 5 Dīnār, Aluminium bronze

    Israel

    https://en.numista.com/1719 - 5 Agorot, Aluminium bronze (92% Copper, 6% Aluminium, 2% Nickel)

    Lebanon

    https://en.numista.com/3006 - 5 Piastres, Aluminium bronze (91% Copper, 9% Aluminium)

    Morocco

    https://en.numista.com/1706 - 5 Francs, Aluminium bronze

    Spain

    https://en.numista.com/5807 - 2.50 Pesetas, Aluminium bronze (90% copper, 10% aluminium)

    Switzerland

    https://en.numista.com/171 - 5 Rappen, Aluminium bronze (92% copper, 6% aluminium, 2% nickel)

    Thailand

    https://en.numista.com/7931 - 5 Satang - Rama IX, Aluminium bronze (91% Copper, 9% Aluminium)
    https://en.numista.com/3840 - 10 Satang - Rama IX, Aluminium bronze (91% Copper, 9% Aluminium)

    https://en.numista.com/1639 - 10 Baht - Rama IX Golden Jubilee, Bimetallic: aluminium bronze center in copper-nickel ring

    Transnistria

    https://en.numista.com/1556 - 25 Kopecks (0.25 PRB), Aluminium bronze
    https://en.numista.com/23959

    Yugoslavia

    https://en.numista.com/829 - 10 Dinars, Aluminium bronze (91 % Copper, 9% Aluminium)
     
  19. mlov43

    mlov43 주화 수집가

    I did not write or respond to you that I doubt that there are other aluminum-bronze coins out there. Perhaps you are the one ignoring certain things?

    I never misconstrued your words. I simply pointed out that there is no such coin in the SOUTH KOREA series of coins, as assertions to the contrary were just the result of a listing error by a publisher. You replied with a photo of a Second Series 50-Won coin and the words, "Found it." That coin is not "yellow," and does not contain aluminum.

    Am I missing anything here?
     
  20. BronzeAge

    BronzeAge Member

    Mark and Button, thanks a ton for all your research, that was amazing. Much appreciated. Stop fighting.

    Let me check to see if I have two silver coin proofs to send as a thank you. I won a contest here at CoinTalk and got about 5 proof sets, and at least one had a silver coin in it.
     
    mlov43 likes this.
  21. mlov43

    mlov43 주화 수집가

    Well, that's very civilized of you... Two silver proof coins is incredibly generous, considering today's silver prices. How about if you keep the one you want and send the other to BronzeAge? I do appreciate it, though!

    That being said, nobody's fighting, I don't think. We had/have a disagreement, that's all.

    If you had been here about 10 years ago, you'd have seen a much more divisive CoinTalk, that's for sure! What's happening here is tame by comparison.
     
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