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Figure 1
Polyoxometalate clusters in minerals shown in polyhedral (left) and skeletal (right) representations: the [Nb6O19]8− cluster in melcherite (a), the [V10O28]6− cluster in pascoite (b), the [AsV12O40(VO)]12− cluster in kegginite (c), and the [H2PV5+12O40(V5+O)2]7− cluster in bicapite (d).

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
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