Bragg's law is used to study these objects with X-rays.
A chemical can produce multiple versions of these objects in polymorphism. These objects are categorized using Miller Indices, which define the "quasi-" kinds of these objects when their ratios are irrational.(*) Triclinic and face-centered cubic are two of fourteen structures named for Bravais that describe these objects and their unit cells. Bragg's law is used to study these objects with X-rays. For 10 points, name these solids consisting of a repeated, regular arrangement of atoms, such as quartz and table salt.
A chemical can produce multiple versions of these objects in polymorphism.
{Crystal}s [or “{crystal}line solids” or “{crystal} lattices”; prompt on “{lattice}s”]