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Oxo-magnesio-hastingsite |
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Zaitsev A N, Avdontseva E Y, Britvin S N, Demeny A, Homonnay Z, Jeffries T E, |
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Keller J, Krivovichev V G, Markl G, Platonova N V, Siidra O I, Spratt J, Vennemann T |
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Mineralogical Magazine 77 (2013) 2773-2792 |
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Oxo-magnesio-hastingsite, NaCa2(Mg2Fe3+3)(Al2Si6)O22O2, a new anhydrous amphibole |
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from the Deeti volcanic cone, Gregory rift, northern Tanzania |
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Locality: the Deeti volcanic cone, Gregory rift, northern Tanzania |
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_database_code_amcsd 0019979 |
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9.8837 18.0662 5.3107 90 105.278 90 C2/m |
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atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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NaAm .0217 .5 .0433 .335 .0198 |
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KAm' .0587 .5 .114 .165 .0371 |
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MgM1 0 .08344 .5 .61 .01223 .0086 .0209 .0077 0 .00317 0 |
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Ti4+M1 0 .08344 .5 .22 .01223 .0086 .0209 .0077 0 .00317 0 |
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Fe3+M1 0 .08344 .5 .17 .01223 .0086 .0209 .0077 0 .00317 0 |
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MgM2 0 .17717 0 .60 .00715 .0073 .0064 .0078 0 .00213 0 |
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AlM2 0 .17717 0 .06 .00715 .0073 .0064 .0078 0 .00213 0 |
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Fe3+M2 0 .17717 0 .34 .00715 .0073 .0064 .0078 0 .00213 0 |
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MgM3 0 0 0 .67 .0081 .0097 .0056 .0079 0 .0004 0 |
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Fe3+M3 0 0 0 .33 .0081 .0097 .0056 .0079 0 .0004 0 |
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CaM4 .27880 .5 .01131 .92 .01131 .0129 .00996 .0129 0 .00672 0 |
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NaM4 .27880 .5 .01131 .075 .01131 .0129 .00996 .0129 0 .00672 0 |
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Mn2+M4 .27880 .5 .01131 .005 .01131 .0129 .00996 .0129 0 .00672 0 |
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SiT1 .28190 .08529 .30306 .575 .00740 .00744 .00632 .00809 -.00073 .00141 -.00056 |
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AlT1 .28190 .08529 .30306 .425 .00740 .00744 .00632 .00809 -.00073 .00141 -.00056 |
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SiT2 .29017 .17250 .81059 .975 .00724 .00715 .00686 .00760 -.00082 .00176 -.00005 |
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AlT2 .29017 .17250 .81059 .025 .00724 .00715 .00686 .00760 -.00082 .00176 -.00005 |
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O1 .10780 .08700 .21959 .00988 .0093 .0096 .0104 -.0008 .0020 -.0004 |
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O2 .11857 .17148 .72761 .00989 .0082 .0105 .0107 -.0001 .0020 .0003 |
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O3 .10719 0 .7145 .70 .0122 .0106 .0136 .0119 0 .0023 0 |
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OH3 .10719 0 .7145 .30 .0122 .0106 .0136 .0119 0 .0023 0 |
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O4 .36486 .25034 .7899 .01222 .0136 .0097 .0135 -.0028 .0039 -.0004 |
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O5 .34981 .13882 .10795 .0140 .0112 .0169 .0129 .0002 .0014 .0051 |
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O6 .34649 .11779 .60676 .0137 .0121 .0143 .0151 .0001 .0040 -.0042 |
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O7 .34140 0 .2852 .0172 .0125 .0148 .0226 0 .0018 0 |
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View JMOL 3-D Structure (permalink) |
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