Akermanite
Merlini M, Gemmi M, Hanfland M, Crichton W
American Mineralogist 94 (2009) 704-709
High-pressure behavior of akermanite and gehlenite and phase stability
of the normal structures in melelites
Note: P = 15 GPa
Locality: synthetic
_database_code_amcsd 0004934
7.570 7.570 4.781 90 90 90 P-42_1m
atom     x     y     z
Mg       0     0     0
Ca   .3371 .1629 .5042
Si   .1430 .3570 .9392
O1       0    .5 -.198
O2   .1421 .3579  .268
O3   .0807 .1841  .774