Structure 9013811

9013810 << 9013811 >> 9013812
Original COD entry Download CIF Download DOT

Citation: Biagioni, C.; Bonaccorsi, E.; Merlino, S.; Parodi, G. C.; Perchiazzi, N.; Chevrier, V.; Bersani, D. (2010). Roumaite, (Ca,Na)3(Ca,REE,Na)4(Nb,Ti)[Si2O7]2(OH)F3, from Rouma Island, Los Archipelago, Guinea: A new mineral species related to dovyrenite. The Canadian Mineralogist, 48, pp. 17-28.

Formula: Ca3.19 Ce1.22 F3 H Na2.07 Nb0.55 O15 Si4 Ti0.45

Cell parameters:

  • a = 7.473 Å
  • b = 11.294 Å
  • c = 18.778 Å
  • α = 90°
  • β = 101.60°
  • γ = 90°

List type: noninterleaving

List: 3D

Combined 3D structure and graph

span 1 {1 1 1}
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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: Ca12 Ce16 F16 Na16 Nb4 O72 Si16 Ti4 (Ca3 Ce4 F4 Na4 Nb O18 Si4 Ti)

Multiplicity: 1

span 1 {1 1 1}