Scandium-fluor-eckermannite
Raudsepp M, Turnock A C, Hawthorne F C
American Mineralogist 72 (1987) 959-964
Characterization of cation ordering in synthetic scandium-fluor-eckermannite,
indium-fluor-eckermannite, and scandium-fluor-nyboite by Rietveld structure
refinement
Sample: FScEC-A3
_database_code_amcsd 0001115
9.8384 18.0634 5.2926 90 103.650 90 C2/m
atom x y z occ Biso
O1 .1151 .0877 .214 .8
O2 .1159 .1673 .724 .8
F3 .1068 0 .712 .8
O4 .3609 .2481 .795 .8
O5 .3490 .1269 .080 1.1
O6 .3475 .1172 .590 1.1
O7 .345 0 .300 1.2
Si1 .2828 .0839 .2915 .4
Si2 .2884 .1688 .7945 .4
Mg1 0 .0865 .5 .974 .6
Sc1 0 .0865 .5 .026 .6
Mg2 0 .1817 0 .573 .6
Sc2 0 .1817 0 .427 .6
Mg3 0 0 0 .6
Na4 0 .2756 .5 .9
NaA .032 .5 .080 .5 2.3
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Scandium
Spedding F H, Daane A H, Herrmann K W
Acta Crystallographica 9 (1956) 559-563
The crystal structures and lattice parameters of high-purity scandium,
yttrium and the rare earth metals
Locality: synthetic
Note: sample 99.6% pure
_database_code_amcsd 0009167
3.3090 3.3090 5.2733 90 90 120 P6_3/mmc
atom x y z
Sc 1/3 2/3 .25
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Scandium
Wyckoff R W G
Crystal Structures 1 (1963) 7-83
Second edition. Interscience Publishers, New York, New York
Cubic closest packed, ccp, structure
_database_code_amcsd 0011160
4.541 4.541 4.541 90 90 90 Fm3m
atom x y z
Sc 0 0 0
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Scandium
Wyckoff R W G
Crystal Structures 1 (1963) 7-83
Second edition. Interscience Publishers, New York, New York
Hexagonal closest packed, hcp, structure
_database_code_amcsd 0011192
3.3090 3.3090 5.2733 90 90 120 P6_3/mmc
atom x y z
Sc 1/3 2/3 .25
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Scandium
Akella J, Xu J, Simth G S
Physica B 139 (1986) 285-288
Static high pressure studies on Nd and Sc
Locality: synthetic
Sample: at P = 26 GPa
_database_code_amcsd 0015008
3.758 3.758 4.761 90 90 90 I4/mmm
atom x y z
Sc 0 0 0
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Scandium
Vohra Y K, Grosshans W, Holzapfel W B
Physical Review B25 (1982) 6019-6021
High-pressure phase transformation in scandium
Locality: synthetic
Sample: at P = 33.5 GPa
_database_code_amcsd 0015168
4.73 4.73 3.18 90 90 90 P4/nmm
atom x y z
Sc1 0 0 0
Sc2 0 .5 .625
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Scandium
Saw C K, Beaudry B J, Stassis C
Physical Review B27 (1983) 7013-7017
Location of deuterium in alpha-scandium
Locality: synthetic
_database_code_amcsd 0015237
3.3088 3.3088 5.2680 90 90 120 P6_3/mmc
atom x y z Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Sc 1/3 2/3 .25 .68 .0083 .0083 .0094 .00415 0 0
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