|
Londonite |
 |
Gatta G D, Vignola P, McIntyre G J, Diella V |
 |
American Mineralogist 95 (2010) 1467-1472 |
|
On the crystal chemistry of londonite [(Cs,K,Rb)Al4Be5B11O28]: |
|
a single-crystal neutron diffraction study at 300 and 20 K |
|
Locality: Antsongombato Gem mine, Betafo district, Madagascar |
|
Note: neutron diffraction study at T = 300 K |
|
_database_code_amcsd 0017717 |
|
7.3098 7.3098 7.3098 90 90 90 P-43m |
|
atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
|
Cs 0 0 0 .34 .023 |
|
K 0 0 0 .34 .023 |
|
Rb 0 0 0 .17 .023 |
|
Al .3608 .3608 .3608 .0020 .0020 .0020 .0020 -.0001 -.0001 -.0001 |
|
Be1 .24835 .5 0 .12 .0028 .0031 .0030 .0022 0 0 -.0002 |
|
B1 .24835 .5 0 .88 .0028 .0031 .0030 .0022 0 0 -.0002 |
|
Be2 .25833 .74167 .25833 .97 .0036 .0036 .0036 .0036 .0001 -.0001 .0001 |
|
B2 .25833 .74167 .25833 .03 .0036 .0036 .0036 .0036 .0001 -.0001 .0001 |
|
O1 .38103 .61897 .38103 .0023 .0023 .0023 .0023 .0003 -.0003 .0003 |
|
O2 .36350 .36350 .09976 .0039 .0045 .0045 .0027 .0007 .0003 .0003 |
|
O3 .39923 .86485 .13515 .0040 .0046 .0037 .0037 -.0004 .0004 .0001 |
|
|
| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure (permalink)
|
| |
|
Londonite |
|
Gatta G D, Vignola P, McIntyre G J, Diella V |
|
American Mineralogist 95 (2010) 1467-1472 |
|
On the crystal chemistry of londonite [(Cs,K,Rb)Al4Be5B11O28]: |
|
a single-crystal neutron diffraction study at 300 and 20 K |
|
Locality: Antsongombato Gem mine, Betafo district, Madagascar |
|
Note: neutron diffraction study at T = 20 K |
|
_database_code_amcsd 0017718 |
|
7.3094 7.3094 7.3094 90 90 90 P-43m |
|
atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
|
Cs 0 0 0 .34 .010 |
|
K 0 0 0 .34 .010 |
|
Rb 0 0 0 .17 .010 |
|
Al .3603 .3603 .3603 .0012 |
|
Be1 .24846 .5 0 .12 .0012 |
|
B1 .24846 .5 0 .88 .0012 |
|
Be2 .74190 .25810 .25810 .97 .0012 |
|
B2 .74190 .25810 .25810 .03 .0012 |
|
O1 .38070 .61930 .38070 .0012 |
|
O2 .36390 .36390 .10010 .0019 .0021 .0021 .0014 .0009 .0004 .0004 |
|
O3 .39899 .86510 .13490 .0024 .0023 .0025 .0025 -.0001 .0001 .0002 |
|
|
| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure (permalink)
|
| |
|
Londonite |
|
Pekov I V, Yakubovich O V, Massa W, Chukanov N V, Kononkova N N, |
|
Agakhanov A A, Karpenko V Y |
| |
The Canadian Mineralogist 48 (2010) 241-254 |
|
Londonite from the Urals, and new aspects of the crystal chemistry |
|
of the rhodozite-londonite series, |
|
Locality: Ministerskaya Yama Pit, Sarapulka pegmatite field, Russia |
|
Note: sample FMM-32135 |
|
_database_code_amcsd 0006327 |
|
7.3149 7.3149 7.3149 90 90 90 P-43m |
|
atom x y z occ Uiso |
|
Cs .5 .5 .5 .553 .0146 |
|
K .460 .460 .460 .083 .0146 |
|
Al .85964 .85964 .85964 .0032 |
|
B .5 .7482 0 .90 .0029 |
|
Be' .5 .7482 0 .10 .0029 |
|
Be .2415 .7585 .7585 .91 .0050 |
|
O1 .1185 .8815 .8815 .0040 |
|
O2 .5995 .86343 .86343 .0033 |
|
O3 .36488 .63512 .9004 .0040 |
|
|
| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure (permalink)
|
| |
|
Londonite |
|
Taxer K J, Buerger M J |
|
Zeitschrift fur Kristallographie 125 (1967) 423-436 |
|
The crystal struture of rhodizite |
|
Note: name of mineral altered according to IMA decision in 1999 |
|
to name the Cs dominant phase: londonite |
|
Locality: Manjaka, Madagascar |
|
_database_code_amcsd 0010650 |
|
7.319 7.319 7.319 90 90 90 P-43m |
|
atom x y z Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) |
|
Cs 0 0 0 1.02 .0048 .0048 .0048 0 0 0 |
|
B .2469 .5 0 .8 |
|
Be .749 .749 .749 1.4 .0068 .0068 .0068 .0003 .0003 .0003 |
|
Al .3603 .3603 .3603 .55 .0026 .0026 .0026 .0002 .0002 .0002 |
|
O1 .6203 .6203 .6203 .51 .0015 .0015 .0015 .0017 .0017 .0017 |
|
O2 .3643 .3643 .1001 .32 .0013 .0013 .0020 .0011 -.0003 .0011 |
|
O3 .1342 .1342 .5996 .75 .0029 .0029 .0048 .0024 .0001 .0024 |
|
|
| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure (permalink)
|
| |
