Sodalite: Mineral information, data and localities.
Sodalite Group.Also classed as a feldspathoid. Ideally sodalite has Na 4 Cl in the two cages in the unit cell. Unlike haüyne and nosean, sodalite is virtually CO 2-free (Bellatreccia et al., 2009). In some sodalites, the aluminosilicate cages appear to contain only Na and Cl according to EDS spectra.