Only improperly made colloidal silver would cause argyria. Either the silver is not pure, or the water contains solids that are reacting under the electrolysis. Or the electrodes were not cleaned during the electrolysis. That's why you should use a high grade of distilled water for this.
Blackrock – that is Larry Fink's corporation. If I'm not mistaken he was involved with the whole Fannie Mae collapse or at least profited greatly from it. Around the time Lehman tanked. Blackrock is a big-time Soros-affiliated fund.
Blackstone is seen as something of a front for the Fed, which would link Fink to the Schiff family.
Background on Fink & the Deep State, embezzlement of TARP funds, etc.
http:// actionmv.com/deepstate-runs-deep-finish-the-democrat-financial-institution-soros-rothschild-blackrock_HEUekfCY2WdU.html