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Thread: anyone know about coins??

  1. #1
    Join Date
    Jul 2006
    Location
    Connecticut, USA
    Posts
    2,478

    Default anyone know about coins??

    title pretty much explains it...

    i just got a couple weird coins. anyone know anything about coins? or a good site to go?

    1 is a state quarter. (USA) its a 2007 idaho quarter. weird thing is. it isnt copper mixed. if you look at the side of your quarters you can see the mix of nickel ( i think its nickel) and copper. this is just silver. although it isnt shiney like actual silver. ??? wierd...

    the other is a copeer lookin coin. front of it says united states of america. it has a crest, shield and eagle. date is 1944. on the back...weird part...it says "one centavo" and on the bottom it says filipinas...

    any ideas?? im goin try to take some pics now and ill repost...

  2. #2
    Join Date
    Jul 2006
    Location
    Connecticut, USA
    Posts
    2,478

    Default

    Some Pics-

    It Only Allows 5. Ill Post More. (sorry For Double Posts...)
    Attached Thumbnails Attached Thumbnails PARTY_COINS 038.jpg  

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    PARTY_COINS 044.jpg  

    PARTY_COINS 046.jpg  

    PARTY_COINS 049.jpg  


  3. #3
    Join Date
    Jul 2006
    Location
    Connecticut, USA
    Posts
    2,478

    Default

    more pictures. these are really boggling my mind...
    Attached Thumbnails Attached Thumbnails PARTY_COINS 053.jpg  

    PARTY_COINS 054.jpg  

    PARTY_COINS 055.jpg  

    PARTY_COINS 057.jpg  


  4. #4
    Join Date
    Jan 2008
    Location
    Stockholm, Sweden
    Posts
    799

    Default

    There's always copper (well, almost...)! I don't know much about coins, but chemistry I do know. There is a very illustrative way of showing there's copper in a coin (works for Cu/Ni alloys at least): Heat the coin until it glows, then drop it in methanol (may catch fire). It should now be very evident that the coin contains copper.

  5. #5
    Join Date
    Dec 2007
    Location
    On the banks of the Mersey
    Posts
    367

    Default

    Last edited by KevSki; 03-08-2008 at 00:37.
    Move toward the light!

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