Geologist Mickey Fulp discusses the rarest of the platinum group metals (aka The Noble Metals) in his latest installment of Mercenary Musings this week on Kitco News. These are some of our favorites and are among the most rare metals on our planet.
http://www.goldgeologist.com/audio/RobertGraham/MercenaryRadio20160523.mp3
http://www.kitco.com/ind/kitcoradio/index.html
https://www.rwmmint.com/products/iridium-ruthenium-osmium-group
