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  1. #1
    us
    Nov 2010
    NEW SWEDEN (SJ)
    Minelab E-Trac, Garrett AT Pro, Pro Pointer
    789
    14 times
    Metal Detecting

    how to read acid tests

    I just got an acid test kit for gold and silver.

    I do not know how to read the results and I feel like an idiot.

    It says if it dissolves the test line, then it is fake. Well, I just can't tell if the line is "dissolved" or what...

    I posted a pic of what I tried. All the tests are supposed to be for gold. I put 1 drop of 10K acid on each line. The line with the 2nd drop below the first is actually silver test acid, which turned dark red.

    Can anyone help me analyze these results, please?
    Attached Thumbnails Attached Thumbnails how to read acid tests-img_2226test1.jpg  

  2. #2
    us
    Jul 2008
    Central Minnesota
    Tesoro Tiger Shark, Whites 5900/Di Pro
    166
    Honorable Mentions (1)

    Re: how to read acid tests

    It takes some practice to figure out how to read the results. The one you tested for silver looks like the result you want (silver). The top left I would say not gold (at least not 10k) And the bottom one I'm leaning toward not gold as well, but it's hard to be sure from the picture. If I get a funny result where I'm just not clear, I'll do it again. I try to rub deeper into the same place I did the first time just to be sure it's not just plated with gold. I'm not an expert I've just been doing it for about a year and a half. Keep practicing. Take something you know is gold and test that. See how the line doesn't fade at all and compare to something you know isn't gold. Good luck.
    2MN

  3. #3
    us
    Jul 2008
    Central Minnesota
    Tesoro Tiger Shark, Whites 5900/Di Pro
    166
    Honorable Mentions (1)

    Re: how to read acid tests

    Hello again,
    This morning I looked at this on my "big screen" so I could see better (not the little phone screen). Now that I see better, I still think the sterling is sterling due to the red result. The other 3 tests I don't belive are gold (10k or higher anyway) due to the scratches have partially or fully disappeared under the drop of acid. There may be some flakes or bubbles under the drops. With a loupe, you can see bubbles sometime forming or you can watch the line slowly disappear. If the metal you are testing is 10K or higher then the 10k testing acid will not eat away ANY of the line you scratched onto stone and no bubbles form. Hope this is helpful.
    2MN

  4. #4
    us
    Nov 2010
    NEW SWEDEN (SJ)
    Minelab E-Trac, Garrett AT Pro, Pro Pointer
    789
    14 times
    Metal Detecting

    Re: how to read acid tests

    Ok, the top right line is an earring marked 14K and it passed the magnet test. I will re-test it with acid again and see if I can get a accurate reading.

    The middle line is a chain marked 925 but looks gold plated. HOWEVER, it failed the magnet test. It looks like it passes the silver acid test so I am still not sure - very confusing.

    The left 2 lines top and bottom and the same piece that I thought was gold but I guess it failed the 10k acid test.

  5. #5
    Charter Member
    ge
    Apr 2011
    Georgia
    Teknetics Delta 4000
    1,115
    1 times

    Re: how to read acid tests

    The red looks like a passing grade for silver to me. Sometimes necklace or bracelet pieces can fail the mag test because of the clasps. The clasps will be made from a stronger base metal while the rest is PM. Was it sticking in the middle or just on the clasp?
    LMAO

  6. #6
    us
    Nov 2010
    NEW SWEDEN (SJ)
    Minelab E-Trac, Garrett AT Pro, Pro Pointer
    789
    14 times
    Metal Detecting

    Re: how to read acid tests

    The whole chain was attracted to a magnet. It looks like there is a silvery metal underneath the "gold" plating. It is also stamped 925 in 2 places. I really think the 14K earring is real so I will try again with the acid and see what happens.

  7. #7
    Charter Member
    ge
    Apr 2011
    Georgia
    Teknetics Delta 4000
    1,115
    1 times

    Re: how to read acid tests

    Quote Originally Posted by jerseyben
    The whole chain was attracted to a magnet. It looks like there is a silvery metal underneath the "gold" plating. It is also stamped 925 in 2 places. I really think the 14K earring is real so I will try again with the acid and see what happens.
    I have seen many, many, pieces that are marked "925" or "Sterling" that would hit on a magnet. If the whole chain hits on a magnet, then there is zero chance it is gold or silver. I don't know how these outlaws get away with this garbage.
    LMAO

  8. #8
    us
    Dec 2007
    South Central PA
    2,750
    1 times

    Re: how to read acid tests

    Quote Originally Posted by hombre_de_plata_flaco
    Quote Originally Posted by jerseyben
    The whole chain was attracted to a magnet. It looks like there is a silvery metal underneath the "gold" plating. It is also stamped 925 in 2 places. I really think the 14K earring is real so I will try again with the acid and see what happens.
    I have seen many, many, pieces that are marked "925" or "Sterling" that would hit on a magnet. If the whole chain hits on a magnet, then there is zero chance it is gold or silver. I don't know how these outlaws get away with this garbage.
    I seen alot of chinese people selling Fake tiffany at flea markets in NJ, I called Tiffany to let them know an they seemed uninterested... Dang jewlery has the id numbers an bags the whole works like real tiffany but if you know what real sterling looks like then you can spot these fakes pretty quick...
    some people call me the creeper ,cuz they don't know my name or face - Alice Cooper

  9. #9
    us
    Oct 2010
    land o lakes fl
    106

    Re: how to read acid tests

    Quote Originally Posted by creeper71
    Quote Originally Posted by hombre_de_plata_flaco
    Quote Originally Posted by jerseyben
    The whole chain was attracted to a magnet. It looks like there is a silvery metal underneath the "gold" plating. It is also stamped 925 in 2 places. I really think the 14K earring is real so I will try again with the acid and see what happens.
    I have seen many, many, pieces that are marked "925" or "Sterling" that would hit on a magnet. If the whole chain hits on a magnet, then there is zero chance it is gold or silver. I don't know how these outlaws get away with this garbage.
    I seen alot of chinese people selling Fake tiffany at flea markets in NJ, I called Tiffany to let them know an they seemed uninterested... Dang jewlery has the id numbers an bags the whole works like real tiffany but if you know what real sterling looks like then you can spot these fakes pretty quick...
    The wholesale flea market at webster fl had the same things last week when i went and wandered around last week . But that side of the flea market has alot of nock off stuff . But my sisters like the nock off coach bags so its not all bad .

    Ive found my local cash for gold a good place to get stuff tested i have questions on since they use the electric probe/clip things . Also gives me a starting point for price when dealing with others that want to buy my stuff .

  10. #10
    us
    Jul 2008
    Central Minnesota
    Tesoro Tiger Shark, Whites 5900/Di Pro
    166
    Honorable Mentions (1)

    Re: how to read acid tests

    Curious on how the testing is going? Did you retest the earring?
    2MN

  11. #11
    us
    Nov 2010
    NEW SWEDEN (SJ)
    Minelab E-Trac, Garrett AT Pro, Pro Pointer
    789
    14 times
    Metal Detecting

    Re: how to read acid tests

    From what I gather, my acid is either mis-labeled or it has "gone bad". I took all my suspected gold pieces to a local pawn shop and they all passed the gold test.

  12. #12

    Apr 2006
    Ventura, CA
    LST
    785
    2 times

    Re: how to read acid tests

    I had some silver acid go bad. I was getting mixed results and thought I had bought some mislabled silver but when I retested with fresh acid it was all 925.

  13. #13
    us
    Jul 2008
    Central Minnesota
    Tesoro Tiger Shark, Whites 5900/Di Pro
    166
    Honorable Mentions (1)

    Re: how to read acid tests

    That stinks (about the acid) but on the brighter side you eventually found out it was gold! I hope you didn't just get the test kit......
    2MN

 

 

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