Citation: Rouse, R. C.; Dunn, P. J.; Peacor, D. R. (1984). Hedyphane from Franklin, New Jersey and Langban, Sweden: Cation ordering in an arsenate apatite sample H90417 from Langban, Sweden. American Mineralogist, 69, pp. 920-927.
Formula: As3 Ca2 Cl O12 Pb3
List type: interleaving
List: 1D
Basis: (0;0;1)
Dimensionality: 1
Formula: As2 O8 Pb2 (As O4 Pb)
Multiplicity: 1