AM_Cordierite_25
Formula: Mg.154 Fe1.813 Li.07 Al3.968 Si4.995 O18.43 Na.162 H.384
Name: Cordierite
Unit cell: 17.2232 9.8261 9.2989 90.0 90.0 90.0 , V=1573.72
Space group: CCCM (66)

Malcherek T , Domeneghetti M C , Tazzoli V , Ottolini L , McCammon C A , Carpenter M A , American Mineralogist , 86 (2001) p.66-79, Structural properties of ferromagnesian cordierites, Sample: g13994, Dolny Bory , Czech Republic