Inside a Noble Metals factory, where even the dust on your shoes is too valuable to ignore! See also our gold bullion video: https://www.youtube.com/watch?v=CTtf5s2HFkA See platinum, iridium, rhodium and palladium (and some gold). Periodic Videos on Patreon: https://www.patreon.com/periodicvideos Filmed at Johnson Matthey - our thanks to them. More from visit to the company's noble metals section is coming soon. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html