American Mineralogist Crystal Structure Database

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Pargasite
Download hom/pargasite.pdf
Oberti R, Hawthorne F C, Ungaretti L, Cannillo E
The Canadian Mineralogist 33 (1995) 867-878
[6]Al disorder in amphiboles from mantle peridotites
Sample: F11
_database_code_amcsd 0005455
9.857 17.932 5.285 90 105.36 90 C2/m
atom       x     y     z  occ Biso
SiT1   .2807 .0854 .3031 .761  .46
AlT1   .2807 .0854 .3031 .239  .46
SiT2   .2910 .1734 .8139 .761  .50
AlT2   .2910 .1734 .8139 .239  .50
MgM1       0 .0894    .5  .93  .53
FeM1       0 .0894    .5  .07  .53
CrM2       0 .1762     0  .02  .54
AlM2       0 .1762     0  .31  .54
FeM2       0 .1762     0  .05  .54
MgM2       0 .1762     0  .62  .54
AlM3       0     0     0  .28  .50
MgM3       0     0     0  .64  .50
FeM3       0     0     0  .08  .50
FeM4       0 .2796    .5  .08  .77
MgM4       0 .2796    .5  .02  .77
CaM4       0 .2796    .5  .90  .77
FeM4'      0 .2543    .5  .08  .87
MgM4'      0 .2543    .5  .02  .87
CaM4'      0 .2543    .5  .92  .87
NaA        0    .5     0 .187 2.36
KA         0    .5     0 .003 2.36
NaA(m) .0254    .5 .0801 .187 5.31
KA(m)  .0254    .5 .0801 .003 5.31
NaA(2)     0 .4683     0 .186 1.26
KA(2)      0 .4683     0 .002 1.26
H      .1855     0 .7555      2.69
O1     .1059 .0875 .2144       .92
O2     .1197 .1736 .7347       .69
Oh3    .1074     0 .7183       .85
O4     .3679 .2505 .7871       .92
O5     .3507 .1416 .1146       .88
O6     .3433 .1152 .6146      1.05
O7     .3410     0 .2694      1.09
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