Platinum Hallmarks: Common Platinum Hallmarks: Platinum, Plat, Platine, PT, , , , , When dealing with the number hallmarks you must test to. Platinum is a chemical element with symbol Pt and atomic number It is a dense, malleable, ductile, highly unreactive, precious, gray-white transition metal. Find information for Platinum Futures provided by CME Group. View Quotes. This has led to wild fluctuations in supply and demand, which in turn has caused platinum's price to be quite volatile. Platinum Name and Symbols Platinum Registration, Inc. Purity Select Silver Silver Silver Silver Weight in grams. Food and Drug Administration. It was referenced in European writings as early as 16th century, but it was not until Antonio de Ulloa published a report on a new metal of Colombian origin in that it began to be investigated by scientists. Large deposits of platinum can be found on the moon and in meteorites, but finding it on earth is more difficult. Abalone Amber Ammolite Copal Coral Ivory Jet Nacre. Get in Touch info gold-traders. After publishing the report in , Ulloa did not continue to investigate the new metal. Something went wrong, please try again. Iridium - symbol Ir - chemical element of the periodic table. From Atoms to Complexity Nobel Lecture ". September 6, at 2: The acronym PTL refers to a kind of sheet metal and is not a precious metal. Lay out the black slate stone on an even surface. Latest Videos How Companies Use Initial Coin Offerings Guides Stock Basics Economics Basics Options Basics Exam Prep Series 7 Exam CFA Level 1 Series 65 Exam. Body piercing Fashion Gemology Phaleristics Metalworking Wearable art. Platinum prices have fallen, but may be a good year for companies that mine it if platinum prices turn around. It is a mark recognised by all member countries of the International Hallmarking Convention. Rare 14k Gold Sterling Cufflinks Hallmark Star Letter "B" Designer OLD 17D1 Image.