Science is fun!!! pity I only find that out now - should have found that out in school
spent a while on sunday destroying some of my silver coins
I dissolved a couple of tiekies in nitric acid(3d - for those too young to know)
once dissolved pour the pretty blue acid through a coffee filter to remove all the solid gunk
take a piece of clean copper wire and wrap it around a pencil and remove it from the pencil
next drop the copper coil into the filtered acid
this is where the fun begins
the acid starts to dissolve the copper and for every copper ion removed from the coil of wire,
it is replaced by an ion of silver.
in a couple of seconds the coil becomes this big fluffy thing and when the 'fluff' gets too much
or too heavy it falls off.
when the coil is dissolved pour the mix through a clean filter. use some water in a spray bottle to get all the fluffy stuff into the filter. when drained pop in another copper coil. repeat till no more fluff forms
spray the filter with clean water to wash any acid/copper out and put the filter out to dry or dry it in an oven
the greyish powder that you recover can be directly smelted in a crucible and will be 99.95% silver
I ^%#^&%* LOVE SCIENCE!!!