#125

P4/nbm

Example – Sodium calcium cyclo-tetraarsenate(V), CaNa₂(As₄O₁₂)

Crystal structure of sodium calcium cyclo-tetraarsenate(V), CaNa₂(As₄O₁₂)

Graia, M.; Driss, A.; Jouini, T.
Zeitschrift fuer Kristallographie – New Crystal Structures (1999) 214, 1-2
CIF
https://www.dropbox.com/s/tu0rst0zvbk1nes/icsd_409335.cif

 

CaO8 square antprisms (blue)
NaO6 octahedra (yellow)
AsO4 tetrahedra (green)

3D rotatable model of CaNa₂(As₄O₁₂)

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