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Nacrite |
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Gruner J |
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Zeitschrift fur Kristallographie 85 (1933) 345-354 |
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The crystal structure of Nacrite and a comparison of certain optical |
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properties of the caolin group with its structures |
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_cod_database_code 1011080 |
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_database_code_amcsd 0017977 |
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5.16 8.93 28.659990000 90 91.72 90 Cc |
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atom x y z |
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Al1 -.25 .3333 0 |
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Al2 -.25 0 0 |
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Al3 .0833 0 .25 |
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Al4 .0833 -.3333 .25 |
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Si1 .4306 .3333 .0938 |
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Si2 .4306 0 .094 |
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Si3 .4306 -.3333 .3438 |
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Si4 .4306 0 .3438 |
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O1 -.0778 .5 .03819 |
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O2 -.0778 -.1667 .03819 |
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O3 .4361 .1667 .1146 |
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O4 .1861 .4167 .1146 |
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O5 .1861 -.0833 .1146 |
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O6 -.0778 -.5 .2882 |
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O7 -.0778 .1667 .2882 |
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O8 .4361 -.1667 .3646 |
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O9 .1861 -.4167 .3646 |
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O10 .1861 .0833 .3646 |
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O11 -.0778 .1667 .03819 |
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O12 -.2556 -.3333 .2119 |
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O13 -.2556 0 .2119 |
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O14 -.2556 .3333 .2119 |
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O15 -.0778 -.167 .2882 |
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O16 .0778 -.3333 .4618 |
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O17 .0778 0 .4618 |
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O18 .0778 .3333 .4618 |
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| Download AMC data (View Text File)
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Nacrite |
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Hendricks S |
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Zeitschrift fur Kristallographie 100 (1939) 509-518 |
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The Crystal Structure of Nacrite Al2 O3 * 2Si O2 * 2H2 O and the |
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Polymorphism of the Kaolin Minerals. |
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_cod_database_code 1011062 |
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_database_code_amcsd 0017961 |
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8.94 5.14 43.0 90 90.33 90 Cc |
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atom x y z |
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Al1 .8333 .1667 .064 |
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Al2 .1667 .1667 .064 |
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Al3 .5 .1667 .7307 |
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Al4 .8333 .1667 .7307 |
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Al5 .1667 .1667 .3973 |
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Al6 .5 .1667 .3973 |
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Si1 0 0 .6667 |
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Si2 .6667 0 .3333 |
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Si3 .3333 0 0 |
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Si4 0 0 .3333 |
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Si5 .6667 0 0 |
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Si6 .3333 0 .6667 |
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O1 0 0 .703 |
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O2 .6667 0 .37 |
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O3 .3333 0 .036 |
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O4 0 0 .37 |
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O5 .6667 0 .037 |
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O6 .3333 0 .703 |
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O7 0 0 .037 |
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O8 .6667 0 .704 |
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O9 .3333 0 .37 |
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O10 .25 .25 -.012 |
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O11 .917 .25 .655 |
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O12 .583 .25 .321 |
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O13 0 .5 -.012 |
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O14 .6667 .5 .655 |
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O15 .3333 .5 .321 |
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O16 .75 .25 -.012 |
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O17 .417 .25 .655 |
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O18 .083 .25 .321 |
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O19 .6665 .3335 .086 |
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O20 .3332 .3335 .7527 |
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O21 -.0002 .3335 .4193 |
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O22 0 .333 .086 |
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O23 .6667 .333 .4193 |
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O24 .3333 .333 .7527 |
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O25 .3335 .3335 .086 |
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O26 .6668 .3335 .4193 |
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O27 .0002 .3335 .7527 |
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| Download AMC data (View Text File)
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Nacrite |
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Zheng H, Bailey S W |
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Clays and Clay Minerals 42 (1994) 46-52 |
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Refinement of the nacrite structure |
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Locality: Red Mountain near Silverton, Colorado, USA |
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_database_code_amcsd 0012238 |
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8.906 5.146 15.664 90 113.58 90 Cc |
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atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) |
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Al1 .1552 .3198 .2177 .0034 .0090 .0017 .0000 .0012 -.0002 |
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Al2 .4901 .3245 .2173 .0033 .0082 .0021 -.0003 .0016 -.0002 |
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Sil .2012 .4700 .0277 .0034 .0052 .0021 -.0001 .0016 .0000 |
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Si2 .3715 .9831 .0270 .0036 .0065 .0017 -.0002 .0013 -.0001 |
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O1 .2411 .7499 -.0041 .0047 .0097 .0023 .0028 .0014 .0005 |
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O2 .2723 .2470 -.0188 .0053 .0080 .0023 -.0013 .0019 .0000 |
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O3 .0029 .4417 -.0193 .0034 .0124 .0019 -.0004 .0012 .0003 |
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O4 .2696 .4385 .1385 .0021 .0047 .0024 -.0004 .0014 -.0001 |
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O5 .4618 .0110 .1381 .0040 .0115 .0020 -.0026 .0014 .0004 |
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Oh1 .0795 .0118 .1432 .0053 .0095 .0023 .0024 .0021 .0006 |
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Oh2 .5580 .6342 .2838 .0054 .0118 .0020 -.0016 .0018 .0000 |
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Oh3 .1780 .6296 .2825 .0043 .0099 .0019 .0007 .0012 .0000 |
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Oh4 .3693 .2066 .2826 .0049 .0154 .0016 -.0010 .0013 -.0010 |
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H1 .6346 .4510 .1277 |
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H2 .5475 .6736 .3279 |
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H3 .2432 .6096 .3296 |
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H4 .4317 .1386 .3228 |
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| Download AMC data (View Text File)
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View JMOL 3-D Structure (permalink)
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Nacrite |
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Zhukhlistov A P |
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Crystallography Reports 53 (2008) 76-82 |
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Crystal structure of nacrite from the electron diffraction data |
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_database_code_amcsd 0012394 |
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8.910 5.144 14.593 90 100.50 90 Cc |
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atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) |
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Al1 .3275 -.0703 -.0002 .0021 .0048 .0009 -.0005 .0001 .0002 |
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Al2 .1628 .4245 .0004 .0020 .0047 .0008 -.0003 .0001 .0004 |
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Si1 .0632 .2796 .1897 .0020 .0046 .0010 -.0008 .0007 -.0002 |
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Si2 .2342 -.2344 .1907 .0021 .0066 .0008 -.0004 .0004 .0001 |
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O1 .1349 .0011 .2215 .0026 .0064 .0015 -.0001 .0012 -.0003 |
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O2 .1809 .5027 .2362 .0024 .0064 .0010 .0008 .0002 -.0006 |
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O3 .4119 -.1925 .2371 .0030 .0076 .0015 .0018 .0010 .0001 |
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O4 .0214 .3111 .0788 .0028 .0065 .0010 -.0021 .0007 -.0003 |
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O5 .2143 -.2620 .0794 .0028 .0082 .0009 .0014 .0005 .0014 |
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Oh1 .3271 .2379 .0748 .0026 .0061 .0011 .0001 .0010 .0005 |
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Oh2 .1640 .1153 -.0660 .0033 .0079 .0014 -.0013 .0009 -.0013 |
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Oh3 .2853 -.3793 -.0650 .0022 .0070 .0012 .0005 .0007 -.0002 |
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Oh4 .4772 .0432 -.0651 .0028 .0090 .0014 .0003 .0009 .0000 |
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H1 .426 .318 .096 .0126 .0293 .0044 .0045 .0048 .0069 |
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H2 .599 .410 .378 .0099 .0330 .0042 -.0094 -.0004 .0041 |
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H3 .300 .346 .380 .0092 .0285 .0033 .0088 .0022 -.0038 |
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H4 .499 -.114 .380 .0090 .0279 .0040 .0121 .0050 .0024 |
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| Download AMC data (View Text File)
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View JMOL 3-D Structure (permalink)
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