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Thread: Cleaning Copper Coins

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  1. #1

    Sep 2017
    3
    2 times
    All Types Of Treasure Hunting

    Cleaning Copper Coins

    I found a KG2 colonial copper half cent with my ACE350 last night. It's pretty well corroded and crusted. I can barely make out the features of the bust the letters G,S and the roman numeral 2. The reverse is worn completely smooth. There is a nice outline where the image used to be. Any one have any tips or tricks for cleaning copper?
    Loco-Digger likes this.

  2. #2

    Mar 2007
    Salinas, CA
    Explorer II, Compass 77b, Tesoro shadow X2
    11,100
    7078 times
    Banner Finds (4)
    Ammonia
    Evereddy likes this.
    Metal detecting is my one worldy vice!

  3. #3
    us
    Mar 2017
    Center of North America
    Etrac- Sunray x5, x8, x12. Garrett AT Gold- Nel Attack coil. Garrett Carrot
    199
    418 times
    All Types Of Treasure Hunting
    I'm no expert, but I use the hydrogen peroxide method for copper coins. Heat just enough hydrogen peroxide in a microwave safe container, bring to a boil then take out of the microwave and put coins in to soak. Repeating the process can help too. That will remove dirt from the coin. It will also dry the coin out so an olive oil soak after could be good too, although I haven't bothered doing that yet.
    Last edited by Divine Profit; Sep 10, 2017 at 08:36 PM. Reason: to right my wrong!
    Evereddy and Keepright like this.

  4. #4

    Mar 2007
    Salinas, CA
    Explorer II, Compass 77b, Tesoro shadow X2
    11,100
    7078 times
    Banner Finds (4)
    Quote Originally Posted by Divine Profit View Post
    .... I use the rubbing alcohol method for copper coins. Heat just enough rubbing alcohol in a microwave safe container, bring to a boil then take out of the microwave and put coins in ....
    Rubbing alcohol, eh ? I've heard the same recipe, but only to use hydrogen peroxide. Bring a petri dish to a boil in the micro-wave (15-ish seconds). Remove petri dish. Drop in the target. You will see the bubbles fizz off your target. Never heard of this method with rubbing alcohol though. Hmmm
    Divine Profit and dsdigger like this.
    Metal detecting is my one worldy vice!

  5. #5
    us
    Apr 2017
    Bay Area, CA
    Tesoro Cibola, XP Deus w/ HF coils, & 11" LF. Land and Sea pinpointer
    395
    500 times
    All Types Of Treasure Hunting
    I was seeking advice on the same recently. Some suggestions i received were to let ot soak in ketchup or taco bell hot sauce. I tried the ketchup and had some success.

  6. #6
    us
    Mar 2017
    Center of North America
    Etrac- Sunray x5, x8, x12. Garrett AT Gold- Nel Attack coil. Garrett Carrot
    199
    418 times
    All Types Of Treasure Hunting
    Quote Originally Posted by Tom_in_CA View Post
    Rubbing alcohol, eh ? I've heard the same recipe, but only to use hydrogen peroxide. Bring a petri dish to a boil in the micro-wave (15-ish seconds). Remove petri dish. Drop in the target. You will see the bubbles fizz off your target. Never heard of this method with rubbing alcohol though. Hmmm
    Yes you're right. Crossed my mind when I said that, that I might have had the wrong word. Yes hydrogen peroxide, not rubbing alcohol. Glad you pointed it out at least

 

 

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