rice marble
A "marble" executed by scattering particles, such
as rice, bread crumbs, etc., in a random manner on
the edges of a book, or, more commonly, on the
covers of calfskin bindings, and then sprinkling
the edges or covers with color. This decoration
was popular on calf bindings of the first half of
the 19th century. When used on the edges of books,
the edge was sometimes first colored, the
particles were scattered over, and a lighter color
was then sprinkled over the first. (152 , 236 , 241 )