• Smithson Tennant
  • He went to Caius College, Cambridge in 1782, and at this time his very productive friendship with Smithson Tennant began, as did their joint experiments on platinum concentrates. (matthey.com)
  • Gold
  • I recently bought a ring that is hallmarked P4SR and after searching google for several hours all i have found about this alloy is that it contains Platinum, Palladium, Gold, and Silver. (goldrefiningforum.com)
  • silver, gold, palladium and platinum. (goldrefiningforum.com)
  • Either way, it is not worth much more than the silver content, there is less than 50 cents worth of gold in the ring and around 20 cents in platinum if my math is right. (goldrefiningforum.com)
  • just to see what it reads on his machine and he tested it about 10 different times and every test showed a different result, Platinum on the first try, 18k 2nd try, nothing on the third try and everytime after that stayed in the gold but was different everytime. (goldrefiningforum.com)
  • Platina Resources Limited, 7 October 2009, "Skaergaard Gold-PGM Project Moves To Next Stage Following Positive Scoping Study Review. (wikipedia.org)
  • Currently drilling explorations are being carried out for the possible exploitation of gold, palladium and platinum in the Kangerlussuaq area. (wikipedia.org)
  • deposits
  • Mafic layered intrusions, including the Bushveld Complex, outweigh by far all other geological settings of platinum deposits. (wikipedia.org)
  • carbon
  • More than half the supply of palladium and its congener platinum is used in catalytic converters , which convert as much as 90% of the harmful gases in automobile exhaust ( hydrocarbons , carbon monoxide , and nitrogen dioxide ) into less noxious substances ( nitrogen , carbon dioxide and water vapor ). (wikipedia.org)
  • oxygen
  • Palladium is a key component of fuel cells , which react hydrogen with oxygen to produce electricity, heat, and water. (wikipedia.org)