I am a brazilian and had the chance to deal with Nevada Coin. I was there to sell some gold coins and they paid me the best price I could fetch in Las Vegas. They are professional, courteous and trustworthy. Before visiting their premises I got a tentative appraisal by phone which I found reasonable. In the shop the attendant offered to approach the manager to get me a (gasp) BETTER price. Do yourself a favor and don’t bother talking to their rude and unprofessional competitors. They will treat you like a moron and quote prices accordingly. For Nevada Coin, five Stars all the way.
Platinum has an atomic number of 78 and a chemical symbol of PT. Platinum’s name is derived from a Spanish word Platina which means little silver. Platinum is the most ductile metal of the metal family i.e. Gold, Silver, Copper. Platinum is a malleable, ductile, gray white precious metal. It has 6 natural occurring isotopes. Platinum is one of the earth’s rarest elements in its crust. Platinum is a rare metal but still used in a lot of vehicle catalytic converter to help with vehicle emissions. Of the 245 tons of Platinum mined in 2010 113 tons where used in vehicle emission control devices. Platinum has been used in many other things from engine parts to oxygen sensors.