AM_Natrotantite
Formula:
Na2 Ta4 O11
Name:
Natrotantite
Unit cell:
6.2092 6.2092 36.619 90.0 90.0 120.0 , V=1222.67
Space group:
R-3C (167)
Ercit T S , Hawthorne F C , Cerny P , Bulletin de Mineralogie , 108 (1985) p.541-549, Locality: synthetic, The crystal structure of synthetic natrotantite