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Luminescence from rare-earth-containing nanostructures has been the subject of active research field in recent years.Here we present the first synthesis and characterization of a brand new type of rare-earth (RE=Tb, Er) silicate (RE3(SiO4)2Cl) core-shell and tubular nanowires.In comparison with RE-doped materials, RE3(SiO4)2Cl shows the advantages of good crystalline quality, ultra-high RE3+ concentration and outstanding chemical/thermal stability.