Citation: Burns, P. C.; Hawthorne, F. C. (1994). Refinement of the structure of hilgardite-1A Locality: Penobsquis potash deposit, Sussex, New Brunswick. Acta Crystallographica, Section C, 50, pp. 653-655.
Formula: B5 Ca2 Cl H2 O10
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: B5 O9 (B5 O9)
Multiplicity: 1
Coordination sequences: