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Rankamaite |
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Atencio D, Contreira R R, Mills S J, Coutinho J M V, |
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Honorato S B, Ayala A P, Ellena J, De Andrade M B |
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American Mineralogist 96 (2011) 1455-1460 |
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Rankamaite from the Urubu pegmatite, Itinga, Minas Gerais, |
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Brazil: Crystal chemistry and Rietveld refinement |
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Note: Identification of OH not reported |
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Locality: Urubu pegmatite, Itinga, Minas Gerais, Brazil |
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_database_code_amcsd 0018556 |
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17.224 17.687 3.9361 90 90 90 C222 |
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atom x y z occ Biso |
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K1 .8322 0 .5 .63 4.5 |
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Na2 .4990 0 .5 .43 4.5 |
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Na3 .25 .25 .5 .68 4.5 |
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Ta1 0 0 0 .71 2 |
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Nb1 0 0 0 .29 2 |
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Ta2 0 .67188 0 .72 2 |
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Nb2 0 .67188 0 .28 2 |
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Ta3 .18037 .39406 0 .85 2 |
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Al3 .18037 .39406 0 .15 2 |
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Ta4 .11190 .82225 0 .89 2 |
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Nb4 .11190 .82225 0 .11 2 |
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O1 .3235 .1061 .5 1 |
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O2 .6165 .6777 .5 1 |
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O3 .1376 .2915 0 1 |
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O4 .0711 .5780 0 1 |
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O5 .2790 .3377 0 1 |
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O6 .1103 .9442 0 1 |
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O7 0 .3334 .5 1 |
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O8 0 .2011 0 1 |
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O9 .7108 0 0 1 |
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O10 0 0 .5 1 |
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| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure
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Mejillonesite |
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Atencio D, Chukanov N V, Nestola F, Witzke T, Coutinho J M V, |
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Zadov A E, Contreira R R, Farber G |
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American Mineralogist 97 (2012) 19-25 |
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Mejillonesite, a new acid sodium, magnesium phosphate mineral, |
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from Mejillones, Antofagasta, Chile |
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Locality: Mejillones, Antofagasta, Chile |
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_database_code_amcsd 0018764 |
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16.295 13.009 8.434 90 90 90 Pbca |
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atom x y z Uiso |
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Na .0322 .8839 .9341 .0218 |
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Mg1 .2434 .8832 .9481 .0128 |
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Mg2 .2437 .8881 .3390 .0127 |
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P1 .1382 .0534 .1427 .0097 |
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P2 .1432 .7876 .6463 .0100 |
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O11 .1933 .0297 .2903 .0154 |
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O12 .1180 .1703 .1361 .0165 |
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O13 .1870 .0243 .9902 .0180 |
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O14 .0585 .9910 .1507 .0225 |
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O21 .1930 .8130 .1433 .0180 |
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O22 .1599 .6425 .0080 .0222 |
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O23 .1502 .8420 .8054 .0206 |
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OH24 .0475 .7451 .1263 .0238 |
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Ow .9897 .8748 .3494 .0327 |
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OZ1 .1866 .2492 .8895 .0200 |
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OZ2 .1701 .4291 .1347 .0221 |
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H1 .173 .486 .821 .053 |
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H2 .160 .249 .179 .044 |
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H3 .135 .448 .068 .053 |
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H4 .005 .604 .964 .024 |
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H5 .142 .212 .959 .052 |
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H6 .000 .820 .319 .055 |
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| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure
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