By
special order we can synthesise many compounds, including ones that could
be not found in catalogues, and even grow crystals from some of them, for
example:
Metal chalcogenides
like CoS, CoSe, CoTe, Al2S3, Al2Se3,
MnS, MnSe, CrS, CrSe, CrTe, CuS, CuSe, ErTe, Bi2Te3,
NiS,
FeS, FeSe and many other compounds ...