CONSTRAINTS OF SYMMETRY. “The physical properties of all the materials are well known to be determined by their symmetry. The lower the symmetry, the richer the palette of material physical properties. On the other hand, the lower is the symmetry of a system, the more ordered it is. Certainly, living organic materials are highly ordered, and one may expect properties characteristic for low-symmetry materials, such as, for example, piezoelectric and pyroelectric effects.”
http://link.springer.com/chapter/10.1007/978-94-011-4094-2_1