Citation: Mellini, M.; Merlino, S. (1978). Caysichite. A double crankshaft chain structure. Canadian Mineralogist, 16, pp. 81-88.
Formula: C6 H15 Ca3 La O46 Si8 Y4
Chemical name: Y4 (Ca.75 La.25)4 (O H) (H2 O)5 (Si8 O20) (C O3)6 (H2 O)2
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: C12 Ca8 La8 O88 Si16 Y8 (C3 Ca2 La2 O22 Si4 Y2)
Multiplicity: 1
Coordination sequences: