  We present a theoretical analysis of photo-absorption spectroscopies in
noncentrosymmetric systems, covering both x-ray and optical regions. Integrated
dichroic spectra are interpreted using microscopic effective operators, which
are obtained by coupling the orbital angular momentum to the orbital anapole.
Symmetry arguments afford a classification of valence-electron states in the
presence of parity nonconserving hybridisation. Enantiomorphism is identified
by a two-particle chiral operator.
