Canadian one cent 1859 in brass

Discussion in 'Coin Chat' started by Luis Fernando, Oct 19, 2009.

  1. Luis Fernando

    Luis Fernando Junior Member

    The coin in the middle.
    [​IMG][​IMG][/IMG]

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    Luis Fernando
     
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  3. snaz

    snaz Registry fever

    Sorry man, I don't think so. Just cleaned. What does it weigh?
    EDIT: Also maybe if you request for this to be moved into "World and Ancient coins" you'll have better responses.
     
  4. Luis Fernando

    Luis Fernando Junior Member

    That's going to be tough. Tin and zinc are very close in density
    (there's only about a 3% difference), so a brass cent would probably
    be within the weight tolerance for a bronze cent--IOW, I don't think
    you could tell by weighing.

    LF.


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    URL=http://good-times.webshots.com/photo/2841201290103886237FKObUC][​IMG][/URL]

    URL=http://good-times.webshots.com/photo/2972330100103886237EqyTTd][​IMG][/URL]
     
  5. asciibaron

    asciibaron /dev/work/null

    they make a different sound when dropped. which is which sound, not sure. please don't drop them far.
     
  6. Luis Fernando

    Luis Fernando Junior Member

    Almost the same sound

    lf
     
  7. Luis Fernando

    Luis Fernando Junior Member

    To the person in charge (Moderator)


    Request for this theme,to be moved into "World and Ancient coins''


    Thanks

    LF
     
  8. CoinKeeper

    CoinKeeper Keeper of Coins

    Both cents are cleaned and they changed colour because of it, so I don't see why you care if they're brass or bronze.
     
  9. Luis Fernando

    Luis Fernando Junior Member

  10. snaz

    snaz Registry fever

    Sorry Luis, your coin is not brass.
     
  11. CoinKeeper

    CoinKeeper Keeper of Coins

    You just did a horrible cleaning job that changed the surface color.
     
  12. Conder101

    Conder101 Numismatist

    It is not possible to tell a brass and a bronze coin apart by a visual inspection. Especially when you do not know the metal ratios used in the alloy. How much zinc is in the brass coin? I've never seen an exact alloy listing for that coin. People tend to think of brass as having a yellow color. That is true, if you have about 20% zinc in the alloy. But a brass coin with 5% zinc is visually indistinguishable for a bronze coin that is copper and 5% tin, Compare a 1961 Lincoln cent witha 1962 Lincoln cent. Can you see a difference in the metal? Probably not, but the 61 is bronze and the 62 is brass. And if the two metals are cleaned they are even harder to tell apart.

    The only way to tell the two apart is to bombard the metal with x-rays or neutrons and study the reemissions to determint what metals are present and in what ratios.
     
  13. Treashunt

    Treashunt The Other Frank

    only by exacting specific gravity tests will you ever know, or Condor's method.
     
  14. mralexanderb

    mralexanderb Coin Collector

    I've asked the same question as the OP and got 1 answer (do a search). Who knows?

    Bruce
     
  15. rlm's cents

    rlm's cents Numismatist

    The test for this is color (colour, if you are Canadian). However, from what I can make out of the OP's coin, it is not brass. At least it does not appear yellow to me.

    per http://varieties.piczo.com/?cr=3&rfm=y
     
  16. Luis Fernando

    Luis Fernando Junior Member

    Thanks for the information.



    [​IMG]

    Luis Fernando
     
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