you separate a mixture of nickels and dimes by their weight
chica con la falda hur..... n esta es mi answer u separate gold from wood by adding it with H2O in a container.... the wood will float n the gold will sink n 4 da nickles n dimes....well just...
Put down the bong and re-read your question.
Dime: Franklin D. RooseveltNickel: Thomas Jefferson
George Washington is on the nickel, and Dwight Eisenhower is on the dime.