Preparation - In the microwave oven, melt each kind of chocolate, one at a time, in separate bowls. Microwave on full power for one minute, stir, then microwave for one more minute or until the chocolate is nearly all melted. Stir until the chocolate is completely melted. Stir 1/2 cup of the pecans into each bowl of chocolate. Alternately spoon the melted chocolate/pecan mixtures onto a wax paper or parchment paper lined cookie sheet. Using a table knife, gently swirl the mixtures together for a marbled look. Allow to harden; break or cut into desired size pieces.
