AM_Cordierite_40
Formula: Mg2 Al4 Si5 O18
Name: Cordierite
Unit cell: 17.058 9.724 9.336 90.0 90.0 90.0 , V=1548.58
Space group: CCCM (66)

Koepke J , Schulz H , Physics and Chemistry of Minerals , 13 (1986) p.165-173, Single crystal structure investigations under high-pressure of the, mineral cordierite with an improved high-pressure cell, Sample: P = 0.3 GPa, Locality: Zabargad island, Red Sea