Turn off the AdBlock plugin to watch the video
and for the proper work of the site
unavailable
16+
Francois Pellier
Add to favorites
Added
Full HD
9 minutes
The video blog focuses on the chemistry of various precious metals and much more. Under different headings, you can watch videos on how the author purifies and determines samples of initial contacts in order to extract silver 920. He also tells how to determine gold in quartz-pyrite gold-bearing ores, create the legendary red gold 585, and more.