American Mineralogist Crystal Structure Database

8 matching records for this search.

Ahrensite
 
Yagi T, Marumo F, Akimoto S I
Download am/vol59/AM59_486.pdf
American Mineralogist 59 (1974) 486-490
Crystal structures of spinel polymorphs of Fe2SiO4 and Ni2SiO4
Locality: synthetic
_database_code_amcsd 0000404
8.234 8.234 8.234 90 90 90 Fd3m
atom     x     y     z  occ B(1,1) B(2,2) B(3,3) B(1,2)  B(1,3)  B(2,3)
Fe    .625  .625  .625 .989  .0015  .0015  .0015 -.0001  -.0001  -.0001
Si    .625  .625  .625 .011  .0015  .0015  .0015 -.0001  -.0001  -.0001
Fe       0     0     0 .023  .0010  .0010  .0010      0       0       0
Si       0     0     0 .977  .0010  .0010  .0010      0       0       0
O    .3658 .3658 .3658       .0015  .0015  .0015 -.0001  -.0001  -.0001
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Ahrensite
 
Finger L W, Hazen R M, Yagi T
Download am/vol64/AM64_1002.pdf
American Mineralogist 64 (1979) 1002-1009
Crystal structures and electron densities of nickel and iron silicate spinels at
elevated temperature or pressure
Locality: synthetic
_database_code_amcsd 0000748
8.236 8.236 8.236 90 90 90 *Fd3m
.125 .125 .125
atom     x     y     z Biso
Fe      .5    .5    .5 0.40
Si    .125  .125  .125 0.27
O    .2409 .2409 .2409 0.41
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Ahrensite
 
Yamanaka T
 
Physics and Chemistry of Minerals 13 (1986) 227-232
Crystal structures of Ni2SiO4 and Fe2SiO4 as a function of
temperature and heating duration
Sample: T = 20 C
Locality: synthetic
_database_code_amcsd 0007404
8.2374 8.2374 8.2374 90 90 90 Fd3m
atom     x     y     z B(1,1) B(2,2) B(3,3)  B(1,2)  B(1,3)  B(2,3)
Fe    .625  .625  .625 .00121 .00121 .00121 -.00005 -.00005 -.00005
Si       0     0     0 .00118 .00118 .00118       0       0       0
O    .3658 .3658 .3658 .00137 .00137 .00137 -.00005 -.00005 -.00005
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View JMOL 3-D Structure (permalink)
 
Ahrensite
 
Yamanaka T
 
Physics and Chemistry of Minerals 13 (1986) 227-232
Crystal structures of Ni2SiO4 and Fe2SiO4 as a function of
temperature and heating duration
Sample: T = 200 C
Locality: synthetic
_database_code_amcsd 0007405
8.2513 8.2513 8.2513 90 90 90 Fd3m
atom     x     y     z B(1,1) B(2,2) B(3,3)  B(1,2)  B(1,3)  B(2,3)
Fe    .625  .625  .625 .00402 .00402 .00402 -.00013 -.00013 -.00013
Si       0     0     0 .00354 .00354 .00354       0       0       0
O    .3658 .3658 .3658 .00472 .00472 .00472 -.00010 -.00010 -.00010
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Ahrensite
 
Yamanaka T
 
Physics and Chemistry of Minerals 13 (1986) 227-232
Crystal structures of Ni2SiO4 and Fe2SiO4 as a function of
temperature and heating duration
Sample: T = 400 C
Locality: synthetic
_database_code_amcsd 0007406
8.2644 8.2644 8.2644 90 90 90 Fd3m
atom     x     y     z B(1,1) B(2,2) B(3,3)  B(1,2)  B(1,3)  B(2,3)
Fe    .625  .625  .625 .00529 .00529 .00529 -.00006 -.00006 -.00006
Si       0     0     0 .00476 .00476 .00476       0       0       0
O    .3658 .3658 .3658 .00558 .00558 .00558 -.00011 -.00011 -.00011
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View JMOL 3-D Structure (permalink)
 
Ahrensite
 
Yamanaka T
 
Physics and Chemistry of Minerals 13 (1986) 227-232
Crystal structures of Ni2SiO4 and Fe2SiO4 as a function of
temperature and heating duration
Sample: T = 600 C
Locality: synthetic
_database_code_amcsd 0007407
8.3114 8.3114 8.3114 90 90 90 Fd3m
atom     x     y     z B(1,1) B(2,2) B(3,3)  B(1,2)  B(1,3)  B(2,3)
Fe    .625  .625  .625 .00687 .00687 .00687 -.00019 -.00019 -.00019
Si       0     0     0 .00654 .00654 .00654       0       0       0
O    .3657 .3657 .3657 .00763 .00763 .00763 -.00087 -.00087 -.00087
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Ahrensite
 
Yamanaka T
 
Physics and Chemistry of Minerals 13 (1986) 227-232
Crystal structures of Ni2SiO4 and Fe2SiO4 as a function of
temperature and heating duration
Sample: T = 700 C
Locality: synthetic
_database_code_amcsd 0007408
8.3398 8.3398 8.3398 90 90 90 Fd3m
atom     x     y     z B(1,1) B(2,2) B(3,3)  B(1,2)  B(1,3)  B(2,3)
Fe    .625  .625  .625 .00712 .00712 .00712 -.00068 -.00068 -.00068
Si       0     0     0 .00760 .00760 .00760       0       0       0
O    .3654 .3654 .3654 .00854 .00854 .00854 -.00102 -.00102 -.00102
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View JMOL 3-D Structure (permalink)
 
Ahrensite
 
Yamanaka T, Shimazu H, Ota K
 
Physics and Chemistry of Minerals 28 (2001) 110-118
Electric conductivity of Fe2SiO4-Fe3O4 spinel solid solutions
Sample: Fe(3-x)SixO4, x = 1.000, synthesized at 1200 C, 10 GPa
Locality: synthetic
_database_code_amcsd 0008507
8.2374 8.2374 8.2374 90 90 90 Fd3m
atom     x     y     z  occ
FeO   .625  .625  .625 .987
SiO   .625  .625  .625 .013
FeT      0     0     0 .026
SiT      0     0     0 .974
O    .3656 .3656 .3656
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View JMOL 3-D Structure (permalink)
 
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Total number of retrieved datasets: 8
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