Name this science that categorizes many solids as triclinic, orthorhombic,  hexagonal or cubic to describe their lattice structure.
One of the mathematical procedures in this field of chemistry is the Rietveld refinement, which   increases the success rate when powder diffraction is used. Some calculations in this discipline are  simplified by the Weiss zone law. An equation in this science sets an integer times wavelength equal to   twice distance times the sine of the incidence angle. That equation, used to analyze X-ray diffraction  results, is Bragg's law. Name this science that categorizes many solids as triclinic, orthorhombic,  hexagonal or cubic to describe their lattice structure.
One of the mathematical procedures in this field of chemistry is the Rietveld refinement, which   increases the success rate when powder diffraction is used.
crystallography