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Olmiite |
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Bonazzi P, Bindi L, Medenbach O, Pagano R, Lampronti G I, Menchetti S |
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Mineralogical Magazine 71 (2007) 193-201 |
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Olmiite, CaMn[SiO3(OH)](OH), the Mn-dominant analogue of poldervaartite, |
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a new mineral species from Kalahari manganese fields (Republic of South Africa) |
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Locality: N'Chwaning II mine, Republic of South Africa |
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_database_code_amcsd 0014579 |
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9.249 9.076 10.342 90 90 90 Pbca |
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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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Ca .15329 .49245 .39231 .0092 .0100 .0099 .0077 -.0003 .0005 .0002 |
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MnM2 .50894 .33741 .43030 .84 .0103 .0118 .0104 .0086 -.0023 -.0006 -.0001 |
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CaM2 .50894 .33741 .43030 .14 .0103 .0118 .0104 .0086 -.0023 -.0006 -.0001 |
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FeM2 .50894 .33741 .43030 .01 .0103 .0118 .0104 .0086 -.0023 -.0006 -.0001 |
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Si .32771 .21852 .65915 .0079 .0096 .0076 .0065 -.0001 -.0001 -.0002 |
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O2 .9441 .3544 .4391 .0107 .0101 .0128 .0094 -.0014 -.0018 -.0017 |
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O3 .1009 .7144 .2881 .0122 .0164 .0117 .0086 .0022 .0037 .0020 |
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O4 .4005 .5509 .4012 .0140 .0141 .0152 .0127 -.0016 .0006 .0012 |
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O5 .1956 .3953 .1874 .0117 .0122 .0129 .0099 .0023 .0009 -.0007 |
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O1 .2509 .3568 .5767 .0151 .025 .0076 .0123 .0027 -.0067 -.0003 |
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H1 .249 .441 .619 .04 |
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H2 .430 .595 .339 .04 |
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Download diffraction data (View Text File)
View JMOL 3-D Structure (permalink)
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