Grey I E, Gatehouse B M
American Mineralogist 64 (1979) 1255-1264
The crystal structure of nigerite-24R
Locality: Mt Garnet, northern Queensland, Australia
18.826 18.826 18.826 17.508 17.508 17.508 R-3m
atom x y z occ Biso
Al(1) .5 0 .5 .7 0.24
Sn(2) .28684 .28684 .28684 0.31
Al(3) .03070 .03070 .03070 .6 0.52
Fe(3) .03070 .03070 .03070 .4 0.52
Al(4) .75013 .75013 .25328 0.35
Al(5) .12488 .12488 .12488 0.22
Fe(6) .53153 .53153 .53153 .5 0.39
Zn(6) .53153 .53153 .53153 .4 0.39
Al(6) .53153 .53153 .53153 .1 0.39
Fe(7) .22047 .22047 .22047 .5 0.66
Zn(7) .22047 .22047 .22047 .3 0.66
Al(7) .22047 .22047 .22047 .2 0.66
Al(8) 0 0 .5 0.33
O(1) .1558 .1558 .6257 0.94
OH(2) .3504 .3504 .3504 0.91
O(3) .4420 .4420 .9213 0.98
O(4) .0644 .0644 .0644 0.88
O(5) .0439 .0439 .6026 0.82
O(6) .5666 .5666 .5666 0.26
O(7) .7056 .7056 .1467 0.97
O(8) .1844 .1844 .1844 0.72
Armbruster T, Feenstra A
European Journal of Mineralogy 16 (2004) 247-254
Lithium in nigerite-group minerals
Note: sample #N17471
Locality: Egbe District, Kabba Province, Nigeria
Note: X-coordinate of O7 adjusted to make the four M8-O7 bonds equivalent
5.716 5.716 55.444 90 90 120 R-3
SnM2 2/3 1/3 .04654 .868 .379
TiM2 2/3 1/3 .04654 .132 .379
AlM1 0 1/2 0 .716 .64
LiM1 0 1/2 0 .192 .64
AlT3 0 0 .03071 .665 .536
ZnT3 0 0 .03071 .171 .536
FeT3 0 0 .03071 .161 .536
MnT3 0 0 .03071 .003 .536
ZnT6 1/3 2/3 .13517 .512 .527
FeT6 1/3 2/3 .13517 .480 .527
MnT6 1/3 2/3 .13517 .008 .527
AlT7 2/3 1/3 .11293 .153 .521
MgT7 2/3 1/3 .11293 .129 .521
ZnT7 2/3 1/3 .11293 .368 .521
FeT7 2/3 1/3 .11293 .344 .521
MnT7 2/3 1/3 .11293 .006 .521
AlM4 .16895 .3379 .08223 .408
AlM5 0 0 .12478 .403
AlM8 5/6 1/6 1/6 .376
O1 .8238 .1762 .02086 1.11
O2 1/3 2/3 .01737 .74
H2 1/3 2/3 .032 6.32
O3 .4944 .5056 .06504 .59
O4 0 0 .06445 .57
O5 .8532 .1468 .10305 .70
O6 1/3 2/3 .09994 .47
O7 .14755 .2951 .14719 .47
O8 2/3 1/3 .14842 .55
Locality: abandoned tin mine Tsomtaub, between Omaruru and Uis, Namibia
5.7109 5.7109 55.373 90 90 120 R-3
SnM2 2/3 1/3 .04650 .803 .366
TiM2 2/3 1/3 .04650 .197 .366
AlM1 0 1/2 0 .700 .61
LiM1 0 1/2 0 .220 .61
AlT3 0 0 .03071 .691 .48
ZnT3 0 0 .03071 .153 .48
FeT3 0 0 .03071 .151 .48
MnT3 0 0 .03071 .005 .48
ZnT6 1/3 2/3 .13506 .497 .542
FeT6 1/3 2/3 .13506 .488 .542
MnT6 1/3 2/3 .13506 .015 .542
AlT7 2/3 1/3 .11293 .190 .51
MgT7 2/3 1/3 .11293 .120 .51
ZnT7 2/3 1/3 .11293 .344 .51
FeT7 2/3 1/3 .11293 .336 .51
MnT7 2/3 1/3 .11293 .010 .51
Al4 .1689 .3378 .08217 .44
Al5 0 0 .12482 .42
Al6 5/6 1/6 1/6 .41
O1 .8232 .1768 .02089 1.19
O2 1/3 2/3 .01728 .58
H2 1/3 2/3 .035 6.32
O3 .4950 .5050 .06496 .63
O4 0 0 .06435 .61
O5 .8523 .1477 .10302 .72
O6 1/3 2/3 .09993 .56
O7 .1475 .2950 .14720 .51
O8 2/3 1/3 .14836 .46
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Total number of retrieved datasets: 3 View in amc, download in amc
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