AM_Melanophlogite
Formula:
Si23 O46 Mg3 C
Name:
Melanophlogite
Unit cell:
26.818 26.818 13.365 90.0 90.0 90.0 , V=9612.18
Space group:
P42/NBC (133)
Nakagawa T , Kihara K , Harada K , American Mineralogist , 86 (2001) p.1506-1512, The crystal structure of low melanophlogite