American Mineralogist Crystal Structure Database

2 matching records for this search.

Epididymite-potassian
 
Naumova I S, Pobedimskaya E A, Pushcharovskii D Yu, Belov N V
Altukhova Yu N
 
Doklady Akademii Nauk SSSR 229 (1976) 856-859
Crystal structure of synthetic K2Be2Si6O15 of the epidimite group
Locality: synthetic
Note: c-cell edge altered to reproduce bond lengths
_database_code_amcsd 0012454
7.485 15.453 11.418 90 90 90 Cmc2_1
atom     x     y     z Biso
K1      .5 .2818 .3619 2.48
K2      .5 .3987  .084  .93
Be1  .1489 .3798 .2275  .26
Si1  .2117 .2095 .1336  .61
Si2  .2046 .0556 .3103   .4
Si3      0 .3497 .4659  .32
Si4      0 .4545 .0009  .52
O1    .322    .2 .0109  .67
O2   .2583 .1291 .2164 1.35
O3   .3245 .0764 .4296  .85
O4   .2701 .2958 .1945  .72
O5   .2704 .4623 .2631 1.16
O6       0  .216 .0948 2.36
O7       0 .4063 .1283  .68
O8       0 .0715 .3518  .13
O9       0 .3542  .332  .52
O10      0 .4409 .5256  .95
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Carpholite
Download hom/carpholite.pdf
Naumova I S, Pobedimskaya E A, Belov N V
 
Kristallografiya 19 (1974) 1155-1160
Crystal structure of carpholite MnAl2(Si2O6)(OH)4
_database_code_amcsd 0017756
13.831 20.296 5.121 90 90 90 *Ccca
0 .75 .75
atom     x     y     z Biso
Mn       0 .8727   .75  .43
Al1  .1933   .75   .75   .3
Al2      0 .9614   .25  .44
Si   .1941 .8794  .413  .25
OH1  .1035 .8072 .8872  .96
O2   .2063    .8 .4332   .7
O3   .2448 .9114 .6709  .43
O4   .0825 .8993 .3983  .66
OH5  .0687  .967 .9312  .65
Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure
 
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