Citation: Aurisicchio, C.; Fioravanti, G.; Grubessi, O.; Zanazzi, P. F. (1988). Reappraisal of the crystal chemistry of beryl Sample: 12 Note: U(1,2) for Na altered to match symmetry constraints.. American Mineralogist, 73, pp. 826-837.
Formula: Al1.917 Be2.937 Fe0.092 Li0.03 Na0.067 O18 Si6.024
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al10 Be6 Fe4 Li6 O36 Si18 (Al5 Be3 Fe2 Li3 O18 Si9)
Multiplicity: 1