Structure 9003431

9003430 << 9003431 >> 9003432
Original COD entry Download CIF Download DOT

Citation: Thompson, R. M.; Downs, R. T. (2004). Model pyroxenes II: Structural variation as a function of tetrahedral rotation model protopyroxene with O3-O3-O3 angle = 180 and model oxygen radius = 1 Note: Atoms Mg, Si, and O are assigned to atomic positions for convenience. American Mineralogist, 89, pp. 614-628.

Formula: Mg O3 Si

Cell parameters:

  • a = 7.037 Å
  • b = 6.928 Å
  • c = 4 Å
  • α = 90°
  • β = 90°
  • γ = 90°

List type: noninterleaving

List: 3D

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Molecules

CIF datablock 0, entity 1 of 1

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

Dimensionality: 3

Formula: Mg8 O24 Si8 (Mg O3 Si)

Multiplicity: 1

Coordination sequences:

  • 3, 24, 78, 148, 251, 391, 543, 726, 951, 1171
  • 3, 27, 75, 150, 262, 379, 550, 734, 930, 1196
  • 4, 28, 66, 143, 245, 361, 528, 709, 903, 1157
  • 10, 40, 97, 181, 285, 436, 599, 786, 1015, 1259
  • 13, 44, 102, 185, 316, 433, 612, 820, 1005, 1272
  • 15, 44, 98, 197, 296, 445, 626, 784, 1043, 1280
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