AM_K6Ta6Si4O26 Formula: K3 Ta3 Si2 O13 Name: K6Ta6Si4O26 Unit cell: 9.066 9.066 7.873 90.0 90.0 120.0 , V=560.41 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)