Structure 9001698

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Citation: Yang, H.; Hirschmann, M. M. (1995). Crystal structure of P2_1/m ferromagnesian amphibole and the role of cation ordering and composition in the P2_1/m - C2/m transition in cummingtonite Sample: 1c, heat treated at 700 C. American Mineralogist, 80, pp. 916-922.

Formula: Al0.014 Ca0.1 Fe2.473 Mg4.423 O24 Si8

Cell parameters:

  • a = 9.5057 Å
  • b = 18.1187 Å
  • c = 5.3059 Å
  • α = 90°
  • β = 102.031°
  • γ = 90°

List type: noninterleaving

List: 3D

Combined 3D structure and graph

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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 Ca4 Fe14 Mg14 O48 Si16 (Al2 Ca2 Fe7 Mg7 O24 Si8)

Multiplicity: 1

span 1 {1 1 1}