|
| Home | Crystal | jmol | jPOWD | Chem | X Ray | Dana | Strunz | Properties | A to Z | Images | Share | News | Help | About |
Niocalite
Return to Structure Data INDEX
| Niocalite Formula: Ca7 Nb Si4 O17 F Name: Niocalite Unit cell: 10.863 10.431 7.37 90.0 110.1 90.0 , V=784.25 Space group: P1A1 (7) |
Mellini M , Tschermaks Mineralogische und Petrographische Mitteilungen , 30 (1982) p.249-266, Niocalite revised: Twinning and crystal structure, Note: cuspidine structure, Locality: Oka, Quebec, Canada
