This is a magnificent looking coin which is sure to become one of your favorite coins in your collection. The BLACK RUTHENIUM, which clads the entire coin, gives the coin an ultra-smooth appearance never before seen on a legal tender U.S. coin and the eye popping, 24KT gold cladded profile of John F. Kennedy highlights every sculptured detail of the coin design. Ruthenium is exceedingly rare, only the 74^th most abundant element in the Earth’s crust. It is a rare transition metal belonging to the platinum group. Only a small amount of ruthenium is mined each year.