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 6-4
Locality: Synthetic
_database_code_amcsd 0005424
9.8992 17.992 5.3081 90 105.190 90 C2/m
atom     x     y     z occ Biso
SiT1 .2829 .0849 .3065 .68   .4
GaT1 .2829 .0849 .3065 .32   .4
SiT2 .2889 .1724 .8127 .90   .4
GaT2 .2889 .1724 .8127 .10   .4
MgM1     0 .0854    .5 .98   .6
MgM2     0 .1783     0 .63   .6
GaM2     0 .1783     0 .37   .6
MgM3     0     0     0 .98   .6
CaM4     0 .2799    .5 .86   .9
MgM4     0 .2799    .5 .14   .9
NaA      0    .5     0 .86  2.3
O1   .1127 .0902 .2099       .8
O2   .1062 .1716 .7263       .8
F3   .1005     0 .7283       .8
O4   .3524 .2462 .7795       .8
O5   .3552 .1389 .1015      1.0
O6   .3419 .1129 .6166      1.0
O7   .3530     0 .2676      1.2