AM_Pyroxmangite_1
Formula:
Mn6.775 Mg.225 Si7 O21
Name:
Pyroxmangite
Unit cell:
9.715 10.549 17.424 112.05 102.83 82.94 , V=1612.20
Space group:
C-1 (2)
Pinckney L R , Burnham C W , American Mineralogist , 73 (1988) p.809-817, High-temperature crystal structure of pyroxmangite, Sample: T = 200 C