 The Norcross Marble Company of Cleveland and Tiffany & Co. both suggested using Georgia, Lee, Rutland, South Dover, and Tuckahoe marbles, but all of them had discoloration problems or chemical properties which led to discoloration, easy erosion, or pock-marking.Wade asked for a longer-lasting stone, and the architects chose granite.Because granite could not be carved in fine lines, the architects abandoned most of the decorative scheme they had proposed for the exterior and increased the size of the blocks used in the exterior walls.