Mumme W G
American Mineralogist 55 (1970) 367-377
The crystal structure of SnTa2O7, thoreaulite, an example of tin in five-fold
coordination
17.140 4.865 5.548 90 91.0 90 C2/c
atom x y z Biso
Sn 0 .2300 .25 1.2
Ta .1698 .2403 .6675 .9
O1 0 .392 .75 3.6
O2 .075 .097 .599 2.6
O3 .124 .567 .427 3.6
O4 .217 .077 .342 3.5
Maksimova N V, Ilyukhin V V, Belov N V
Soviet Physics Doklady 20 (1975) 528-529
Crystal structure of thoreaulite, SaTa2O6
Locality: Manono, Katanga, Democratic Republic of the Congo
17.11299 4.872 5.548 90 90.59 90 Cc
Sn .0028 .2295 .2678 .69
Ta1 .1693 .2455 .6743 .65
Ta2 .3297 .2548 .3390 .66
O1 .0725 .0914 .6033 .79
O2 .4289 .4233 .4107 .62
O3 .1411 .4706 .9218 .69
O4 .3573 .0484 .0619 .54
O5 .2196 .0567 .3490 .53
O6 .2817 .4297 .6399 .59
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