AM_Chevkinite-(Nd) Formula: Nd4 Si4 Mg1.999 Ti3.001 O22 Name: Chevkinite-(Nd) Unit cell: 13.328 5.727 10.971 90.0 100.91 90.0 , V=822.27 Space group: P121/A1 (14)

Calvo C , Faggiani R , American Mineralogist , 59 (1974) p.1277-1285, A re-investigation of the crystal structures of chevkinite and perrierite, Coordinates to O8 revised by Dr. Zhuming Yang, December 2001, Locality: natural, but location not given