AM_Koragoite
Formula:
Mn3.16 Fe.1 Ta.652 W1.807 Nb3.6 Ti.09 O20
Name:
Koragoite
Unit cell:
24.73 5.056 5.76 90.0 103.5 90.0 , V=700.30
Space group:
P1211 (4)
Yamnova N A , Pushcharovskii D Yu , Voloshin A V , Kristallografiya , 40 (1995) p.469-475, Crystal structure of a new natural Mn, W-tantaloniobate