American Mineralogist Crystal Structure Database

2 matching records for this search.

Kentrolite
Download hom/kentrolite.pdf
Moore P B, Sen Gupta P K, Shen J, Schlemper E O
Download am/vol76/AM76_1389.pdf
American Mineralogist 76 (1991) 1389-1399
The kentrolite-melanotekite series, 4Pb2(Mn,Fe)2O2[Si2O7]: Chemical
crystallographic relations, lone-pair splitting, and cation relation to 8URe2
_database_code_amcsd 0001395
6.961 11.018 9.964 90 90 90 Pbcn
atom     x      y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb1  .4561  .3012 .5500 .73  .0167  .0091  .0096  .0003 -.0011 -.0016
Pb2  .5351  .3098 .5475 .27  .0267  .0075  .0064  .0039  .0015 -.0004
Mn1     .5      0     0 .68  .0099  .0060  .0062  .0009 -.0015 -.0017
Fe1     .5      0     0 .32  .0099  .0060  .0062  .0009 -.0015 -.0017
Mn2     .5  .1482   .25 .68  .0083  .0080  .0054      0 -.0011      0
Mn2     .5  .1482   .25 .32  .0083  .0080  .0054      0 -.0011      0
Si   .2140 -.0907 .2528      .0078  .0046  .0066  .0013 -.0009  .0005
O1   .3402  .0054 .3361      .0116  .0072  .0094 -.0079 -.0013 -.0057
O2   .2995 -.1135 .1031      .0251  .0083  .0087 -.0054  .0034 -.0075
O3   .1888 -.2217 .3272      .0126  .0125  .0094 -.0051 -.0011  .0040
O4       0 -.0286   .25      .0059  .0109  .0546      0  .0001      0
O5   .6094  .1442 .4227      .0167  .0034  .0039 -.0010 -.0018  .0001
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Kentrolite
Download hom/kentrolite.pdf
Dorsam G, Liebscher A, Wunder B, Franz G
Download am/vol93/AM93_573.pdf
American Mineralogist 93 (2008) 573-583
Crystal structures of synthetic melanotekite (Pb2Fe2Si2O9), kentrolite
(Pb2Mn2Si2O9), and the aluminum analogue (Pb2Al2Si2O9)
Locality: synthetic
_database_code_amcsd 0004536
7.0079 11.0665 9.9634 90 90 90 P2_122_1
atom      x      y      z occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb1   .5486  .5525  .2001 .72 .0086  .0091  .0077  .0090  .0011 -.0015  .0040
Pb2   .5348  .5476  .1989 .28 .0267  .0435  .0192  .0173  .0012 -.0026 -.0213
Pb3   .5479 -.0599  .2974 .65 .0095  .0083  .0107  .0095  .0011  .0009 -.0012
Pb4   .4986 -.0558  .2985 .35 .0245  .0444  .0163  .0127  .0004 -.0013 -.0098
Mn1      .5  .1048      0     .0068  .0070  .0075  .0059      0 -.0004      0
Mn2       0  .6054      0     .0063  .0055  .0073  .0062      0  .0016      0
Mn3   .5016  .2490  .2496     .0069  .0075  .0068  .0064 -.0008 -.0006 -.0001
Si1   .7876  .1571  .4971     .0087  .0083  .0094  .0084 -.0003 -.0016  .0016
Si2   .7867  .3436 -.0037     .0069  .0058  .0072  .0077 -.0003  .0005  .0012
O1    .8887  .6092  .1731     .0099  .0096  .0141  .0061  .0001 -.0017  .0005
O2        0  .2222     .5     .0212  .0034  .0057  .0544      0 -.0120      0
O3    .7009  .3679  .1434     .0115  .0159  .0089  .0099 -.0070  .0060 -.0049
O4    .8122  .4729 -.0808     .0134  .0163  .0114  .0125  .0036  .0067 -.0023
O5    .7901 -.1351  .1474     .0193  .0372  .0119  .0088 -.0036 -.0038  .0090
O6    .6634  .2454 -.0882     .0102  .0086  .0114  .0108 -.0001 -.0011 -.0047
O7    .8117  .0266  .4218     .0112  .0075  .0089  .0174 -.0047 -.0012  .0005
O8    .6566  .2511  .4152     .0106  .0102  .0138  .0079 -.0003  .0004  .0034
O9    .6148  .1107  .1720     .0093  .0086  .0119  .0073  .0002 -.0022 -.0023
O10       0  .2811      0     .0145  .0075  .0067  .0294      0  .0016      0
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Total number of retrieved datasets: 2
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