This coin is coated with Black Ruthenium, which is a type of platinum metal that looks like a dark platinum, but is 100 times Rarer. Ruthenium is a chemical element with the symbol RU & Atomic # 44. It is a rare transition metal belonging to the platinum group of the periodic table. Genuine and Authentic U.S. Legal Tender Coin. Each Coin is Lavished in Genuine Ruthenium with 24KT GOLD plated highlights. Full-Color Certificate of Authenticity is Included with Each Coin. Each Coin is Handsomely Showcased in an Acrylic Coin Capsule. Commemorative Edition. Satisfaction Guaranteed.