Citation: Prencipe, M.; Pushcharovsky, D. Y.; Sarp, H.; Ferraris, G. (1996). Comparative crystal chemistry of geminite Cu[AsO3OH]H2O and related minerals. Moscow University Geology Bulletin, 51, pp. 51-58.
Formula: As Cu H3 O5
List type: interleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: As4 Cu4 O20 (As Cu O5)
Multiplicity: 1
Coordination sequences:
Formula: As4 Cu4 O18 (As2 Cu2 O9)