Citation: Nakatsuka, A.; Yoshiasa, A.; Yamanaka, T.; Ito, E. (1999). Structure refinement of birefringent Cr-bearing majorite Mg3(Mg.34Si.34Al.18Cr.14)2Si3O12. American Mineralogist, 84, pp. 199-202.
Formula: Al0.36 Cr0.28 Mg3.68 O12 Si4.68
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al16 Cr16 Mg24 O96 Si48 (Al2 Cr2 Mg3 O12 Si6)
Multiplicity: 1