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Belkovite
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| Belkovite.12106 Formula: Ba3 Nb6 Si4 O26 Name: Belkovite Unit cell: 8.981 8.981 7.84 90.0 90.0 120.0 , V=547.64 Space group: P-62m (189) |
Choisnet J , Nguyen N , Groult D , Raveau B , Materials Research Bulletin , 11 (1976) p.887-894, De nouveaux oxydes a reseau forme d octahedres NbO6 (TaO6) et de groupes Si2O7:, Les phases A3Ta6Si4O26 (A = Ba,Sr) et K6M6Si4O26 (M = Nb,Ta), Locality: synthetic
