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