Citation: Wildner, M.; Andrut, M. (2001). The crystal chemistry of birefringent natural uvarovites: Part II. Single-crystal X-ray structures Sample: Sar-k12. American Mineralogist, 86, pp. 1231-1251.
Formula: Al0.538 Ca3 Cr1.462 O12 Si3
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al16 Cr16 O96 Si24 (Al2 Cr2 O12 Si3)
Multiplicity: 1