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Manganiandrosite-(Ce) |
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Cenki-Tok B, Ragu A, Armbruster T, Chopin C, Medenbach O |
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European Journal of Mineralogy 18 (2006) 569-582 |
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New Mn- and rare-earth-rich epidote-group minerals in metacherts: |
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manganiandrosite-(Ce) and vanadoandrosite-(Ce) |
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Locality: Praborna manganese mine, Saint-Marcel, Aosta valley, Alps, Italy |
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8.901 5.738 10.068 90 113.425 90 P2_1/m |
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atom x y z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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Mn2+A1 .7594 .75 .1531 .60 1.14 .022 .009 .014 0 .009 0 |
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CaA1 .7594 .75 .1531 .40 1.14 .022 .009 .014 0 .009 0 |
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CeA2 .5920 .75 .4282 .46 1.05 .0149 .0123 .0110 0 .0034 0 |
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LaA2 .5920 .75 .4282 .23 1.05 .0149 .0123 .0110 0 .0034 0 |
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NdA2 .5920 .75 .4282 .12 1.05 .0149 .0123 .0110 0 .0034 0 |
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SmA2 .5920 .75 .4282 .01 1.05 .0149 .0123 .0110 0 .0034 0 |
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SrA2 .5920 .75 .4282 .07 1.05 .0149 .0123 .0110 0 .0034 0 |
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CaA2 .5920 .75 .4282 .02 1.05 .0149 .0123 .0110 0 .0034 0 |
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Mn3+M1 0 0 0 .63 1.03 .017 .006 .016 .000 .007 .000 |
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Fe3+M1 0 0 0 .23 1.03 .017 .006 .016 .000 .007 .000 |
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TiM1 0 0 0 .10 1.03 .017 .006 .016 .000 .007 .000 |
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MgM1 0 0 0 .04 1.03 .017 .006 .016 .000 .007 .000 |
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AlM2 0 0 .5 .8 .015 .003 .013 -.001 .005 .000 |
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Mn2+M3 .3167 .25 .2066 .96 1.06 .016 .008 .013 0 .002 0 |
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Mn3+M3 .3167 .25 .2066 .04 1.06 .016 .008 .013 0 .002 0 |
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Si1 .3490 .75 .0325 .73 .012 .006 .010 0 .004 0 |
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Si2 .6932 .25 .2828 .84 .014 .006 .012 0 .006 0 |
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Si3 .1929 .75 .3248 .57 .014 .003 .008 0 .006 0 |
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O1 .2456 .989 .0212 1.0 |
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O2 .3162 .972 .3596 .7 |
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O3 .8060 .012 .3322 1.0 |
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O4 .057 .25 .132 1.1 |
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O5 .050 .75 .1588 1.0 |
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O6 .079 .75 .421 .4 |
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O7 .516 .75 .176 1.1 |
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O8 .559 .25 .347 1.2 |
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O9 .400 .75 -.106 1.2 |
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OH10 .091 .25 .428 .5 |
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