Property of an object if some spatial manipulation of it results in an indistinguishable object. A symmetric object can be superimposed on itself by some operation. operation of shifting an object a given distance in a given direction. Translation may occur in 3 dimensions along axes that may or may not be perpendicular to one another. Crystal structures result from translation of a Smallest repeating unit of a crystalline solid that can be used to describe the entire structure. Unit cells are like templates which can be copied to produce an entire crystal. by the lengths of its edges along its crystallographic axes.