Structure 9014538

9014537 << 9014538 >> 9014539
Original COD entry Download CIF Download DOT

Citation: Chukanov, N. V.; Britvin, S. N.; Blass, G.; Belakovskiy, D. I.; Van, K. V. (2012). Windhoekite, Ca2Fe3+3-x(Si8O20)(OH)4*10H2O, a new palygorskite-group mineral from the Aris phonolite, Namibia Note: the chemical formula for this mineral cannot be obtained from the crystal structure. The structure is missing two oxygens, and the OH positions were not given.. European Journal of Mineralogy, 24, pp. 171-179.

Formula: Ca1.98 Fe2.76 H20 Mn0.14 O32 Si8

Cell parameters:

  • a = 14.319 Å
  • b = 17.825 Å
  • c = 5.242 Å
  • α = 90°
  • β = 103.5°
  • 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: Ca8 Fe6 Mn8 O52 Si16 (Ca4 Fe3 Mn4 O26 Si8)

Multiplicity: 1

Coordination sequences:

  • 1, 6, 15, 26, 37, 40, 75, 87, 116, 128
  • 1, 8, 15, 30, 29, 55, 56, 102, 98, 150
  • 2, 6, 9, 28, 29, 66, 56, 92, 90, 172
  • 2, 6, 9, 29, 30, 68, 54, 96, 95, 178
  • 2, 6, 9, 31, 31, 56, 53, 108, 106, 186
  • 2, 6, 10, 36, 40, 70, 66, 118, 102, 180
  • 2, 11, 18, 34, 36, 56, 71, 105, 113, 152
  • 3, 12, 19, 51, 31, 56, 61, 134, 122, 208
  • 4, 6, 21, 22, 49, 41, 80, 78, 151, 142
  • 4, 6, 21, 25, 54, 53, 93, 85, 149, 138
  • 4, 17, 19, 37, 41, 78, 74, 124, 119, 203
  • 4, 18, 19, 41, 35, 59, 58, 116, 113, 203
  • 6, 10, 31, 27, 55, 48, 98, 90, 170, 154
  • 6, 10, 34, 26, 44, 36, 68, 82, 176, 142
  • 7, 15, 26, 37, 40, 75, 87, 116, 128, 170
  • 9, 15, 30, 29, 55, 56, 102, 98, 150, 148
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