To provide a further improvement of luminescence performance such as an
extension of a continuation time of a light accumulation luminescence or
a luminescence by ultraviolet rays, by a control of the structure of the
artificial stone. A noctilucent/luminescent artificial stone including a
transparent aggregate, at least one kind of a light accumulation material
and a luminescent material by ultraviolet rays along with a resin is
characterized by that the luminescence performance of the artificial
stone is higher than that of the included light accumulation material or
luminescent material by ultraviolet rays per se.