AM_Roedderite
Formula:
K.94 Na1.02 Mg4.75 Fe.12 Mn.1 Ti.01 Si12 O30
Name:
Roedderite
Unit cell:
10.139 10.139 14.269 90.0 90.0 120.0 , V=1270.32
Space group:
P-62C (190)
Armbruster T , European Journal of Mineralogy , 1 (1989) p.715-718, Crystal chemistry of double-ring silicates:, structure of roedderite at 100 and 300 K, T= 100 K