<P> The Supreme Court Building is built in the Neoclassical style . The public façade is made of marble quarried from Vermont , and that of the non-public - facing courtyards , Georgia marble . Most of the interior spaces are lined with Alabama marble , except for the Courtroom itself , which is lined with Spanish ivory vein marble . For the Courtroom 's 24 columns , `` Gilbert felt that only the ivory buff and golden marble from the Montarrenti quarries near Siena , Italy '' would suffice . To this end , in May 1933 , he petitioned the Italian Premier , Benito Mussolini , `` to ask his assistance in guaranteeing that the Siena quarries sent nothing inferior to the official sample marble . '' </P>
what type of column is found in the u.s. supreme court building
ivory buff and golden marble