Abstract:　Tb9.33(SiO4)6O2　crystals　have　been　grown　by　the　Czochralski　technique　for　the　first　time　for　magneto-optical　applications.　Rietveld　structure　refinement　of　XRD　data　confirms　that　the　compound　crystallizes　in　the　hexagonal　system　P63/m,　with　oxyapatite　structure.　Transmittance　spectra　and　the　Faraday　rotation　have　been　investigated,　which　demonstrate　that　Tb9.33(SiO4)6O2　crystals　show　a　higher　visible　transparency　and　a　larger　Faraday　rotation　than　Tb3Ga5O12　crystals.　Tb9.33(SiO4)6O2　is　therefore　a　promising　material　in　particular　for　new　magneto-optical　applications　in　the　visible-near　IR　wavelength　region.　©　2015　Elsevier　B.V.　All　rights　reserved.