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Guidottiite |
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Wahle M W, Bujnowski T J, Guggenheim S, Kogure T |
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Clays and Clay Minerals 58 (2010) 364-376 |
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Guidottiite, the Mn-analogue of cronstedtite: A new serpentine-group |
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mineral from South Africa |
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Locality: N'chwaning 2 mine, Kalahari manganese field, South Africa |
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_database_code_amcsd 0018323 |
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5.5472 5.5472 14.296 90 90 120 P6_3 |
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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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MnM1 .6670 -.0008 .2375 .618 .0139 .0138 .0138 .0141 .0070 .0001 .0003 |
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Fe3+M1 .6670 -.0008 .2375 .203 .0139 .0138 .0138 .0141 .0070 .0001 .0003 |
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MgM1 .6670 -.0008 .2375 .179 .0139 .0138 .0138 .0141 .0070 .0001 .0003 |
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SiT1 0 0 .0382 .322 .0090 .0086 .0086 .0097 .0043 0 0 |
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Fe3+T1 0 0 .0382 .678 .0090 .0086 .0086 .0097 .0043 0 0 |
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SiT2 1/3 2/3 .0366 .631 .0095 .0088 .0088 .011 .0044 0 0 |
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Fe3+T2 1/3 2/3 .0366 .369 .0095 .0088 .0088 .011 .0044 0 0 |
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O1 .191 .332 0 .0190 |
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O4 0 0 .1570 .0067 .0096 .0096 .001 .0048 0 0 |
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O5 1/3 2/3 .1577 .0073 .0074 .0074 .007 .0037 0 0 |
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OH1 2/3 1/3 .1592 .0052 .0068 .0068 .002 .0034 0 0 |
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OH2 .335 .001 .3081 .0087 .010 .013 .002 .005 .002 .001 |
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View JMOL 3-D Structure (permalink)
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