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Pyatenkoite-(Y) |
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Rastsvetaeva R K, Khomyakov A P |
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Doklady Chemistry 351 (1996) 283-286 |
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Crystal structure of pyatenkoite-(Y) Na5YTiSi6O18*6H2O, a new mineral of the |
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hilairite group: crystal structure |
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Locality: Lovozero massif, Kola Peninsula, Russia |
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_database_code_amcsd 0012500 |
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10.696 10.696 15.728 90 90 120 R32 |
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atom x y z occ Biso |
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Na1 0 0 .1933 2.2 |
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Na2 .365 0 .5 3.1 |
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YM2 1/3 2/3 1/6 .5 1.01 |
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DyM2 1/3 2/3 1/6 .3 1.01 |
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GdM2 1/3 2/3 1/6 .2 1.01 |
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TiM1 0 0 0 .8 .78 |
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NbM1 0 0 0 .2 .78 |
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Si .4228 .4073 .2476 .69 |
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O1 .092 .168 .0749 1.2 |
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O2 .103 .211 .5720 1.3 |
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O3 .657 0 0 1.0 |
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O4 .641 0 .5 1.8 |
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Ow5 .503 .144 .0589 1.8 |
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H1 .53 .43 .04 2.0 |
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H2 .48 .68 0 2.0 |
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