Citation: Hughes, J. M.; Mariano, A. N.; Drexler, J. W. (1992). Crystal structures of synthetic Na-REE-Si oxyapatites, synthetic monoclinic britholite Locality: synthetic. Neues Jahrbuch fur Mineralogie, Monatshefte, 1992, pp. 311-319.
Formula: F0.45 La4.277 Na0.723 O12.55 Si3
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: F2 La10 Na10 O26 Si6 (F La5 Na5 O13 Si3)
Multiplicity: 1