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
Sample: LL 441
Locality: Kisete crater, Kerimasi volcano, Gregory rift, Tanzania
_database_code_amcsd 0021051
10.434 10.434 10.434 90 90 90 *Fd-3m
.125 .125 .125
atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Ca 0 .5 0 .515 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021
Na 0 .5 0 .325 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021
U 0 .5 0 .08 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021
Ce 0 .5 0 .06 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021
La 0 .5 0 .01 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021
Nd 0 .5 0 .01 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021
Pr 0 .5 0 .005 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021
Mn 0 .5 0 .005 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021
Sr 0 .5 0 .005 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021
Y 0 .5 0 .005 .0143 .0143 .0143 .0143 -.0021 -.0021 -.0021
Nb .75 .5 .25 .865 .0118 .0118 .0118 .0118 .00092 -.00092 .00092
Nb .75 .5 .25 .06 .0118 .0118 .0118 .0118 .00092 -.00092 .00092
Nb .75 .5 .25 .04 .0118 .0118 .0118 .0118 .00092 -.00092 .00092
Nb .75 .5 .25 .035 .0118 .0118 .0118 .0118 .00092 -.00092 .00092
Nb .75 .5 .25 .005 .0118 .0118 .0118 .0118 .00092 -.00092 .00092
O .8210 .625 .125 .0159 .0203 .0137 .0137 0 0 .0052
F .125 .625 .125 .54 .0259 .0259 .0259 .0259 0 0 0
O .125 .625 .125 .46 .0259 .0259 .0259 .0259 0 0 0
Download AMC data (View Text File )Download CIF data (View Text File )Download diffraction data (View Text File )View JMOL 3-D Structure (permalink )
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
Sample: KS 23
Locality: Kisete crater, Kerimasi volcano, Gregory rift, Tanzania
_database_code_amcsd 0021052
10.3975 10.3975 10.3975 90 90 90 *Fd-3m
.125 .125 .125
atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Ca 0 .5 0 .58 .0149 .0149 .0149 .0149 -.00301 -.00301 -.00301
Na 0 .5 0 .39 .0149 .0149 .0149 .0149 -.00301 -.00301 -.00301
U 0 .5 0 .015 .0149 .0149 .0149 .0149 -.00301 -.00301 -.00301
Sr 0 .5 0 .01 .0149 .0149 .0149 .0149 -.00301 -.00301 -.00301
Nb .75 .5 .25 .835 .01182 .01182 .01182 .01182 .00067 -.00067 .00067
Ti .75 .5 .25 .11 .01182 .01182 .01182 .01182 .00067 -.00067 .00067
Si .75 .5 .25 .03 .01182 .01182 .01182 .01182 .00067 -.00067 .00067
Fe .75 .5 .25 .02 .01182 .01182 .01182 .01182 .00067 -.00067 .00067
Zr .75 .5 .25 .005 .01182 .01182 .01182 .01182 .00067 -.00067 .00067
O .81957 .625 .125 .98 .0130 .0154 .0118 .0118 0 0 .0046
OH .81957 .625 .125 .02 .0130 .0154 .0118 .0118 0 0 .0046
F .125 .625 .125 .90 .0146 .0146 .0146 .0146 0 0 0
OH .125 .625 .125 .10 .0146 .0146 .0146 .0146 0 0 0
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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Total number of retrieved datasets: 