Citation: Dal Negro, A.; De Pieri, R.; Quareni, S. (1978). The crystal structures of nine K feldspars from the Adamello Massif (Northern Italy) Note: Sample A1D. Acta Crystallographica, Section B, 34, pp. 2699-2707.
Formula: Al0.95 Ba0.006 Ca0.005 K0.904 Na0.085 O8 Si3.05
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al16 O32 Si16 (Al O2 Si)
Multiplicity: 1
Coordination sequences: