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Muscovite |
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Richardson S M, Richardson J W |
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American Mineralogist 67 (1982) 69-75 |
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Crystal structure of a pink muscovite from Archer's Post, Kenya: Implications |
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for reverse pleochroism in dioctahedral micas |
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_database_code_amcsd 0000854 |
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5.1988 9.0266 20.1058 90 95.782 90 C2/c |
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atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) |
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K 0 .0992 .25 0.0188 0.0084 .00199 0 .00092 0 |
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Si1 .4510 .2587 .1355 .75 0.0114 0.0047 0.0015 -.0005 .0008 .0002 |
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Al1 .4510 .2587 .1355 .25 0.0115 0.0047 0.0015 -.0005 .0008 .0002 |
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Si2 .0354 .4298 .3646 .75 0.0100 0.0051 0.0014 -.0010 .0006 -.0001 |
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Al2 .0354 .4298 .3646 .25 0.0100 0.0051 0.0014 -.0010 .0006 -.0001 |
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Al3 .2506 .0838 .0002 0.0073 0.0045 0.0013 .0000 .0002 .0002 |
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O1 .3872 .2525 .0543 0.0173 0.0068 0.0017 -.0010 .0012 .0000 |
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O2 .0366 .4431 .4459 0.0159 0.0066 0.0017 .0016 .0003 .0008 |
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O3 .4178 .0931 .1685 0.0257 0.0084 0.0017 .0004 .0012 .0001 |
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O4 .2475 .3712 .1685 0.0154 0.0088 0.0020 .0017 .0004 .0003 |
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O5 .2509 .3132 .3424 0.0196 0.0095 0.0023 .0009 .0004 -.0007 |
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OH6 .0422 .0622 .4492 0.0196 0.0081 0.0018 -.0018 .0010 .0001 |
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