This paper describes the synthesis of barium
copper silicate using agglomeration of BaD, CuD, SiOz and
borax. The synthesized pigments were then investigated by
using X-ray diffraction (XRD) and scanning cleeton
microscopy (SEM) techniques. The alkaline oxides, earth
alkaline oxides, etc. can reduce the intensity of XRD lines
of the samples. In order to confirm the existence of barium
copper silicate pigments, the blue and purple glazes were
sythesized and their X-ray diffraction lines were then
investigated and compared to those for the ancient glazes.