You bring up argyria, but you don't mention how argyria is actually acquired. I have yet to find any instance of an individual using electrically-generated Colloidal Silver getting argyria. Do you have a reference on this which shows argyria being induced in (electrically created, as opposed to mechanically created) Colloidal Silver users?
Do you have any research available which demonstrates a link between cancer and Colloidal Silver use?
Do you have any research which demonstrates the difference between colloidal minerals and neutral minerals?
Do you have any information on why silver products are used on newborns' eyes?