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Thread: cleaning shell crusted coin

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  1. #1
    us
    Texas Beach Hunter

    May 2012
    Cypress,Tx
    Whites Surf P.I. Dual Field Garrett AT Pro Stealth 720i sand scoop Garret Propointer Buzz's The Bomb Sheath & Lesche Digger w/ T handle
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    cleaning shell crusted coin

    Went to High Island today and found what looks like a coin. Does anyone know how to clean shell crusted coin without scratching it with a knife?

    Click image for larger version. 

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    lorraine likes this.
    Whites Surf PI Dual Field, Stealth 720i sand scoop, Garrett Pro pointer, Buzz's The Bomb Sheath, Lesche Digger with T handle

  2. #2
    us
    Dec 2010
    Minelab GT; Sov Elite
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    Not sure if the coin is a rare one, but if not you could try electrolysis..that will do the job.

    Lorraine

  3. #3

    Feb 2012
    North Pole
    Sovereign GT and Excalibur II, Whites, Garrett, Fisher, Alert, MD,Cscope,Tesoro, Compas, XP, Long Rs
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    One third jewelry of the World are under sand so far
    Finds2014
    Coins usables=800
    Silver= 8 pieces
    Gold= 2 Rings


  4. #4
    us
    Feb 2012
    CTX 3030; The only metal detector I'll ever need
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    You could try soaking it in water for a couple of days,then try picking at it carefuly with a dental pic if you have one.

  5. #5
    us
    Jun 2012
    Central Florida
    Coinmaster Pro, Sand Shark
    2,631
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    When I find corroded and shell encrusted pennies I put them in muriatic acid for about 5 to 10 seconds. It will get all of that crud off for sure. It probably effects the value but it gives some instant gratification. You can get muriatic acid at Lowe's, Home Depot, or any pool chemical supply store. Make sure you wear a gas mask and do it outside. It takes around 3 seconds to start burning your hands. I just work fast with it and stay near water to wash my hands. You can put the acid in any glass container to be safe. Use a pair of grip pliers to dunk and shake the coin. Have fun!

  6. #6
    us
    Jun 2011
    Gulf Coast Fl.
    whites' Pi Pro, Dual Field, and fisher labs' Cz21 , BH Land Star, BH 3300 ,Garrett GTI 2500
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    I sometimes forget to remove coins from metal detecting clothes pockets before washing .They seem to come out clean..
    PullTabPete likes this.
    herb

  7. #7
    us
    Texas Beach Hunter

    May 2012
    Cypress,Tx
    Whites Surf P.I. Dual Field Garrett AT Pro Stealth 720i sand scoop Garret Propointer Buzz's The Bomb Sheath & Lesche Digger w/ T handle
    191
    25 times
    Beach and Shallow Water Hunting
    Thanks for the input! I have an ultrasonic bath in my laboratory. I'll try muriatic acid and see how it does. I need to put together something for electrolysis.
    Whites Surf PI Dual Field, Stealth 720i sand scoop, Garrett Pro pointer, Buzz's The Bomb Sheath, Lesche Digger with T handle

  8. #8
    us
    Jun 2012
    Central Florida
    Coinmaster Pro, Sand Shark
    2,631
    2029 times
    Beach and Shallow Water Hunting
    You will get great results with muriatic acid. Let me know how it turns out.

  9. #9

    Mar 2010
    Dutch Caribbean
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    When I'm curious about one of those that I find, I'll put them in a cup of white vinegar and add a little salt. Let them soak for a couple hours and the crusties will come off easily enough. I've used muriatic acid to clean my pool and concrete, very effective stuff but it will burn you and the fumes are toxic. Good luck.

  10. #10
    us
    Texas Beach Hunter

    May 2012
    Cypress,Tx
    Whites Surf P.I. Dual Field Garrett AT Pro Stealth 720i sand scoop Garret Propointer Buzz's The Bomb Sheath & Lesche Digger w/ T handle
    191
    25 times
    Beach and Shallow Water Hunting
    Ok. I'll do the vinegar thing.
    Whites Surf PI Dual Field, Stealth 720i sand scoop, Garrett Pro pointer, Buzz's The Bomb Sheath, Lesche Digger with T handle

 

 

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