Dysprosium oxide (Dy2O3) is a sesquioxide compound of the rare earth metal dysprosium. It is a pastel yellowish-greenish, slightly hygroscopic powder having specialized uses in ceramics, glass, phosphors, lasers, dysprosium metal halide lamps, and as a Faraday rotator.It is the buyers responsibility to follow all local laws regarding ordering, shipping, or importation of goods into their respective country. Refunds cannot be given for any order that is seized by customs due to ordering goods that are restricted in their country. Returns can only be accepted when the product is shipped back unused in its original packaging. Orders are weighed before shipping and again when a return is received. If the weight differs or the materials were clearly used then a refund cannot be issued.