A crony returned from Greece currently as well as gave me the little Euro coins which we tested to be magnetic.
Canadian ‘looneys’ (one dollar coin) have been captivating nonetheless crop up bullion as do the not long ago minted dollar coins. But US dollar coins have been not captivated by the magnet.
http://www.usmint.gov/about_the_mint/?action=coin_specifications
Note: The lead combination of a Sacagawea Golden Dollar silver is matching to which of a Presidential Dollar coin.