Structure 9001993

9001992 << 9001993 >> 9001994
Original COD entry Download CIF Download DOT

Citation: Oberti, R.; Hawthorne, F. C.; Camara, F.; Raudsepp, M. (1999). Unusual M3+ cations in synthetic amphiboles with nominal fluoro-eckermannite composition: Deviations from stoichiometry and structural effects of the cummingtonite component Sample: Al, Na.98Na1.10Mg.90Mg4.88Al.12Si8O22F2. American Mineralogist, 84, pp. 102-111.

Formula: Al0.12 F2 Mg5.76 Na2.11 O22 Si8

Cell parameters:

  • a = 9.668 Å
  • b = 17.916 Å
  • c = 5.271 Å
  • α = 90°
  • β = 102.82°
  • γ = 90°

List type: noninterleaving

List: 3D

Combined 3D structure and graph

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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: Al4 F4 Mg10 O44 Si16 (Al2 F2 Mg5 O22 Si8)

Multiplicity: 1

Coordination sequences:

  • 2, 6, 9, 27, 29, 62, 55, 126, 103, 201
  • 2, 6, 10, 25, 30, 69, 55, 113, 101, 202
  • 2, 6, 10, 27, 29, 69, 56, 117, 101, 198
  • 3, 8, 13, 35, 34, 75, 64, 124, 111, 215
  • 3, 12, 21, 41, 33, 72, 67, 140, 113, 232
  • 4, 6, 19, 21, 50, 44, 95, 84, 174, 133
  • 4, 7, 18, 22, 55, 48, 95, 81, 168, 147
  • 4, 12, 15, 36, 37, 76, 64, 136, 114, 217
  • 4, 16, 16, 39, 36, 72, 65, 135, 115, 225
  • 5, 8, 23, 28, 53, 55, 98, 94, 174, 140
  • 6, 10, 30, 26, 52, 48, 96, 86, 188, 148
  • 6, 11, 26, 26, 54, 50, 106, 88, 184, 144
  • 7, 9, 26, 25, 57, 50, 102, 94, 176, 138
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