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Protoferro-anthophyllite |
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Sueno S, Matsuura S, Gibbs G V, Boisen M B |
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Physics and Chemistry of Minerals 25 (1998) 366-377 |
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A crystal chemical study of protoanthophyllite: |
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orthoamphiboles with the protoamphibole structure |
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Sample: PFA Hiruka Village |
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_database_code_amcsd 0008147 |
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9.388 18.387 5.347 90 90 90 Pnmn |
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atom x y z occ Biso |
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FeM1 0 .08826 .5 .55 |
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FeM2 0 .17998 0 .95 .45 |
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MgM2 0 .17998 0 .05 .45 |
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FeM3 0 0 0 .54 |
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FeM4 0 .25880 .5 .80 .75 |
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MnM4 0 .25880 .5 .20 .75 |
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Si1 .2850 .0835 .1635 .45 |
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Si2 .2972 .1667 .6611 .49 |
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O1 .1127 .0881 .1621 .65 |
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O2 .1254 .1741 .6646 .69 |
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OH3 .1139 0 .6613 .74 |
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O4 .1163 .2583 .1912 .85 |
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O5 .3472 .1247 .4083 .89 |
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O6 .3478 .1211 .9123 1.07 |
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O7 .3379 0 .1722 1.00 |
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