Is there any home test to test gold ?
468495
here's part of a forum for you:
567188
Wow it is scary reading some of these answers... Take it to a reputable jeweler in your town and they will test it using  a touchstone and several different types of nitric acid to test. If this is done wrong you could ruin your piece of jewelry.... fire is certainly not your answer... gold meltsssssssssssss..most jewelers and I mean jewelers can tell just by looking, though sometimes even they need to test a piece...
803934
What testing tools you are talking about exactly?
1161920
You can check in the Shop called Pure Gold. They have nice and heavy jewelleries and all rages of gold from white gold to ,21,22,23,24 carat gold.
664835
It depends on the weight of the gold.  You most likely wont get very much for it.
1039864
If you can measure the weight and volume of the ring, you could find its density.  The value will be different depending on what purity it is (24k will be denser than 12k, for example).  Most gold in jewelry is not 24k, but some alloy with nickel, copper, etc. that makes it harder.  These alloys are also how you get white, pink, and green gold.\n\nBiting a ring will only give you marks if it is 24k gold.\n\ndensity would be the easiest way, I'd say.  (density = mass/volume)\nYou'll need the equipment to measure pretty small masses and volumes, though, which most people don't have in their kitchens.
375989
In a trash can....they are free.\n\nTry an opticians' trash can....that is the closest to a testing place you will find.
1099415
I don't know how you are precipitating out the gold, but I don't think a colorimetric test for gold in solution is possible.  It is non-reactive and does not ionize.  Given that gold has filled upper electron orbitals, you might be able to run a UV-VIS spectrum and get some UV absorption for solvated gold versus clean aqua regia.  The UV apsorption is probably going to be in the lower UV wavlengths, and it might not be possible to differentiate between trace levels of gold and trace levels of transition metal impurities.\n\nIf you are precipitating the gold by an equilibrium process, just load up on your precipitation compound to push the equilibrium as far as possible to one side.  Another possibility is to electrolytically remove any trace gold from the aqua regia.  Sorry I don't have any better suggestions.
127360
You test its 'hardness'.  Gold is weak.
1070079
You should try Gold Bond powder....it works for my son.
617616
No, the tests are different. They do a lot more analysis than your at home test.
442093
yellow gold and white gold are the same in the allergy department.  \nstart looking at platinum, but beware that platinum dulls very quickly and i'm not sure if jewelers can get it to shine again.\n\ngosh....i feel for you.  ask jewelers if there are any treatments for the gold that would put a barrier between your skin and the metal...maybe some kind of coating??
25132
If you want to identify brass versus gold, try using some ammonia solution or vinegar on the metal. Brass has oxides which will be dissolved and the brass will come out much brighter. Gold does not oxidize and will not react. Highly polished brass will not have an oxide coat to remove, so you can test it by immersing it in a solution with 2/3 vinegar and 1/3 hydrogen peroxide solution, and leave it for more than fifteen minutes. If it is brass and not gold, the solution will begin to turn green as the copper in the brass begins to dissolve. Again, gold will not react.
659771
www.discovery.com \nSearch the word ´´Mythbusters`` they´ll give you some test and it´s totally FREE.
566483
from program called "goldwave"
406838
It depends on the form of the gold...gold coins: find a reputable coin dealer in your area.
722637
Mail it to me, I have a friend who knows a friend of a friend who knows a bit about gold.  I'll then be able to fill you in on any details.  I am honest, honest!