Structure 1526273

1526272 << 1526273 >> 1526274
Original COD entry Download CIF Download DOT

Citation: Popov, V.A.; Pautov, L.A.; McCammon, C.; Sokolova, E.; Hawthorne, F.C.; Bazhenova, L.F. (2001). Polyakovite-(Ce), (REE, Ca)4 (Mg, Fe(2+)) (Cr(3+), Fe(3+))2 (Ti, Nb)2 Si4 O22, a new metamict mineral species from the Ilmen mountains, southern Ural, Russia: mineral description and crystal chemistry. Canadian Mineralogist, 39, pp. 1095-1104.

Formula: Ca0.24 Ce1.86 Cr1.28 Fe0.92 La1.23 Mg0.8 Nb0.32 Nd0.35 O22 Pr0.15 Si4 Sm0.01 Th0.12 Ti1.52 Y0.04

Chemical name: (Ce1.86 La1.23 Nd0.35 Pr0.15 Sm0.01 Y0.04 Ca0.24 Th0.12) (Mg0.8 Fe0.2) (Cr1.28 Fe0.72) (Ti1.52 Nb0.32) Si4 O22

Cell parameters:

  • a = 13.398 Å
  • b = 5.6974 Å
  • c = 11.042 Å
  • α = 90°
  • β = 100.539°
  • γ = 90°

List type: noninterleaving

List: 3D

Combined 3D structure and graph

span 1 {1 1 1}
Ctrl-click to select multiple nodes

JSmol combined CIF view

Linear Graph Knot

Molecules

CIF datablock 0, entity 1 of 1

Basis: (1;0;0 0;1;0 0;0;1)

Dimensionality: 3

Formula: Ca8 Ce8 Cr4 Fe6 La8 Mg2 Nb4 Nd8 O44 Pr8 Si8 Sm8 Th8 Ti4 Y8 (Ca4 Ce4 Cr2 Fe3 La4 Mg Nb2 Nd4 O22 Pr4 Si4 Sm4 Th4 Ti2 Y4)

Multiplicity: 1

span 1 {1 1 1}