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Fluorcalciopyrochlore |
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Zaitsev A N, Spratt J, Shtukenberg A G, Zolotarev A A, Britvin S N, |
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Petrov S V, Kuptsova A V, Antonov A V |
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Mineralogical Magazine 85 (2021) 532-553 |
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Oscillatory- and sector-zoned pyrochlore from carbonatites of the Kerimasi |
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volcano, Gregory rift, Tanzania |
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Sample: LL 441 |
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Locality: Kisete crater, Kerimasi volcano, Gregory rift, Tanzania |
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_database_code_amcsd 0021051 |
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10.434 10.434 10.434 90 90 90 *Fd-3m |
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.125 .125 .125 |
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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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Ca 0 .5 0 .515 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021 |
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Na 0 .5 0 .325 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021 |
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U 0 .5 0 .08 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021 |
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Ce 0 .5 0 .06 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021 |
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La 0 .5 0 .01 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021 |
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Nd 0 .5 0 .01 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021 |
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Pr 0 .5 0 .005 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021 |
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Mn 0 .5 0 .005 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021 |
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Sr 0 .5 0 .005 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021 |
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Y 0 .5 0 .005 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021 |
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Nb .75 .5 .25 .865 .0118 .0118 .0118 .0118 .00092 -.00092 .00092 |
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Nb .75 .5 .25 .06 .0118 .0118 .0118 .0118 .00092 -.00092 .00092 |
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Nb .75 .5 .25 .04 .0118 .0118 .0118 .0118 .00092 -.00092 .00092 |
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Nb .75 .5 .25 .035 .0118 .0118 .0118 .0118 .00092 -.00092 .00092 |
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Nb .75 .5 .25 .005 .0118 .0118 .0118 .0118 .00092 -.00092 .00092 |
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O .8210 .625 .125 .0159 .0203 .0137 .0137 0 0 .0052 |
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F .125 .625 .125 .54 .0259 .0259 .0259 .0259 0 0 0 |
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O .125 .625 .125 .46 .0259 .0259 .0259 .0259 0 0 0 |
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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 (permalink) |
| |
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Fluorcalciopyrochlore |
| |
Zaitsev A N, Spratt J, Shtukenberg A G, Zolotarev A A, Britvin S N, |
|
Petrov S V, Kuptsova A V, Antonov A V |
| |
Mineralogical Magazine 85 (2021) 532-553 |
|
Oscillatory- and sector-zoned pyrochlore from carbonatites of the Kerimasi |
|
volcano, Gregory rift, Tanzania |
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Sample: KS 23 |
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Locality: Kisete crater, Kerimasi volcano, Gregory rift, Tanzania |
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_database_code_amcsd 0021052 |
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10.3975 10.3975 10.3975 90 90 90 *Fd-3m |
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.125 .125 .125 |
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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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Ca 0 .5 0 .58 .0149 .0149 .0149 .0149 -.00301 -.00301 -.00301 |
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Na 0 .5 0 .39 .0149 .0149 .0149 .0149 -.00301 -.00301 -.00301 |
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U 0 .5 0 .015 .0149 .0149 .0149 .0149 -.00301 -.00301 -.00301 |
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Sr 0 .5 0 .01 .0149 .0149 .0149 .0149 -.00301 -.00301 -.00301 |
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Nb .75 .5 .25 .835 .01182 .01182 .01182 .01182 .00067 -.00067 .00067 |
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Ti .75 .5 .25 .11 .01182 .01182 .01182 .01182 .00067 -.00067 .00067 |
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Si .75 .5 .25 .03 .01182 .01182 .01182 .01182 .00067 -.00067 .00067 |
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Fe .75 .5 .25 .02 .01182 .01182 .01182 .01182 .00067 -.00067 .00067 |
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Zr .75 .5 .25 .005 .01182 .01182 .01182 .01182 .00067 -.00067 .00067 |
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O .81957 .625 .125 .98 .0130 .0154 .0118 .0118 0 0 .0046 |
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OH .81957 .625 .125 .02 .0130 .0154 .0118 .0118 0 0 .0046 |
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F .125 .625 .125 .90 .0146 .0146 .0146 .0146 0 0 0 |
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OH .125 .625 .125 .10 .0146 .0146 .0146 .0146 0 0 0 |
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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 (permalink) |
| |
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