American Mineralogist Crystal Structure Database

1 matching records for this search.

Potassic-fluoro-pargasite
 
Oberti R, Boiocchi M, Hawthorne F C, Pagano R, Pagano A
 
Mineralogical Magazine 74 (2010) 961-967
Fluoro-potassic-pargasite, KCa2(Mg4Al)(Si6Al2)O22F2, from the
Tranomaro area, Madagascar: mineral description and crystal chemistry
Locality: Tranomaro area, Madagascar
_database_code_amcsd 0018305
9.9104 17.9739 5.3205 90 105.534 90 C2/m
atom       x     y     z  occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
KA         0    .5     0 .233 2.85  .0094  .0020  .0375      0  .0170      0
NaA        0    .5     0 .095 2.85  .0094  .0020  .0375      0  .0170      0
CaA        0    .5     0 .010 2.85  .0094  .0020  .0375      0  .0170      0
KAm    .0269    .5 .0542 .206 2.65  .0086  .0017  .0350      0  .0138      0
NaAm   .0269    .5 .0542 .083 2.65  .0086  .0017  .0350      0  .0138      0
CaAm   .0269    .5 .0542 .009 2.65  .0086  .0017  .0350      0  .0138      0
KA2        0 .5369     0 .023 1.75
NaA2       0 .5369     0 .010 1.75
CaA2       0 .5369     0 .001 1.75
CaM4       0 .2808    .5       .71  .0022  .0005  .0074      0  .0019      0
MgM1       0 .0899    .5  .93  .63  .0019  .0005  .0048      0  .0011      0
Fe2+M1     0 .0899    .5  .07  .63  .0019  .0005  .0048      0  .0011      0
MgM2       0 .1761     0 .425  .55  .0015  .0004  .0050      0  .0008      0
AlM2       0 .1761     0 .395  .55  .0015  .0004  .0050      0  .0008      0
Fe2+M2     0 .1761     0 .020  .55  .0015  .0004  .0050      0  .0008      0
Fe3+M2     0 .1761     0 .135  .55  .0015  .0004  .0050      0  .0008      0
TiM2       0 .1761     0 .025  .55  .0015  .0004  .0050      0  .0008      0
MgM3       0     0     0  .93  .60  .0018  .0005  .0046      0  .0005      0
Fe2+M3     0     0     0  .06  .60  .0018  .0005  .0046      0  .0005      0
Mn2+M3     0     0     0  .01  .60  .0018  .0005  .0046      0  .0005      0
SiT1   .2784 .0863 .3065   .5  .50  .0013  .0004  .0046 -.0001  .0005      0
AlT1   .2784 .0863 .3065   .5  .50  .0013  .0004  .0046 -.0001  .0005      0
SiT2   .2906 .1742 .8172  .95  .53  .0014  .0005  .0046      0  .0008  .0001
AlT2   .2906 .1742 .8172  .05  .53  .0014  .0005  .0046      0  .0008  .0001
O1     .1039 .0894 .2159       .78  .0020  .0008  .0060 -.0003  .0011 -.0004
O2     .1188 .1740 .7368       .75  .0017  .0006  .0072      0  .0004  .0001
F3     .1055     0 .7137  .63  .86  .0023  .0007  .0079      0  .0011      0
O3     .1055     0 .7137  .37  .86  .0023  .0007  .0079      0  .0011      0
O4     .3679 .2517 .7933       .91  .0032  .0006  .0088 -.0001  .0024      0
O5     .3504 .1403 .1152       .93  .0023  .0008  .0077      0  .0005  .0007
O6     .3438 .1189 .6120       .97  .0023  .0008  .0097  .0001  .0013 -.0008
O7     .3361     0 .2914      1.24  .0029  .0008  .0149      0  .0012      0
H       .166     0  .751  .37  1.0
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