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