Pargasite
Jenkins D M, Hawthorne F C
The Canadian Mineralogist 33 (1995) 13-24
Synthesis and rietveld refinement of amphibole along
the join Ca2Mg5Si8O22F2 - NaCa2Mg4Ga3Si6O22F2
Sample: PARG 8-2
Locality: Synthetic
_database_code_amcsd 0005422
9.8820 18.017 5.2990 90 105.068 90 C2/m
atom     x     y     z occ Biso
SiT1 .2835 .0848 .3027 .74   .4
GaT1 .2835 .0848 .3027 .26   .4
SiT2 .2897 .1711 .8139 .96   .4
GaT2 .2897 .1711 .8139 .04   .4
MgM1     0 .0862    .5       .6
MgM2     0 .1781     0 .79   .6
GaM2     0 .1781     0 .21   .6
MgM3     0     0     0 .98   .6
CaM4     0 .2785    .5 .98   .9
MgM4     0 .2785    .5 .02   .9
NaA      0    .5     0 .71  2.3
O1   .1108 .0879 .2033       .8
O2   .1126 .1717 .7326       .8
F3   .1026     0 .7083       .8
O4   .3516 .2470 .7749       .8
O5   .3552 .1384 .0935      1.0
O6   .3397 .1155 .6192      1.0
O7   .3517     0 .2901      1.2