Citation: Perrault, G. (1968). La composition chimique et la structure cristalline du pyrochlore d'Oka, P.Q.. Canadian Mineralogist, 9, pp. 383-402.
Formula: Ca11.21 Ce1.67 F3.59 Fe0.75 H1.26 La0.23 Mn0.128 Na2.1 Nb11.29 Nd0.23 O52.53 Sr0.08 Ta0.5 Ti2.53 U0.064 Y0.064 Zr1.05
Chemical name: (Na2.10 Ca11.21 Sr0.08 Mn0.128 Ce1.67 La0.23 Nd0.23 Y0.064 U0.064) (Nb11.29 Ta0.5 Ti2.53 Zr1.05 Fe0.75) O51.27 (O H)1.26 F3.59
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Ca16 Ce16 F8 Fe16 La16 Mn16 Na16 Nb16 Nd16 O56 Sr16 Ta16 Ti16 U16 Y16 Zr16 (Ca2 Ce2 F Fe2 La2 Mn2 Na2 Nb2 Nd2 O7 Sr2 Ta2 Ti2 U2 Y2 Zr2)