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Figure 1 The crystal structure of durangite, NaAl(AsO4)F. The octahedra and tetrahedra represent the AlO4F2 and AsO4 groups, respectively. |
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Figure 1 The crystal structure of durangite, NaAl(AsO4)F. The octahedra and tetrahedra represent the AlO4F2 and AsO4 groups, respectively. |