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Dravite |
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Foit F F, Rosenberg P E |
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American Mineralogist 64 (1979) 788-798 |
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The structure of vanadium-bearing tourmaline and its implications regarding |
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tourmaline solid solutions |
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Locality: Silver Knob, Mariposa County, California, USA |
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_database_code_amcsd 0000739 |
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15.967 15.967 7.191 90 90 120 R3m |
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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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NaX 0 0 .21764 .46 .00196 .00196 .00670 .00098 0 0 |
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CaX 0 0 .21764 .36 .00196 .00196 .00670 .00098 0 0 |
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MgX 0 0 .21764 .18 .00196 .00196 .00670 .00098 0 0 |
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MgY .12353 .061765 .63364 .62 .00058 .00042 .00306 .00029 -.00047 -.000235 |
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VY .12353 .061765 .63364 .25 .00058 .00042 .00306 .00029 -.00047 -.000235 |
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CrY .12353 .061765 .63364 .06 .00058 .00042 .00306 .00029 -.00047 -.000235 |
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FeY .12353 .061765 .63364 .06 .00058 .00042 .00306 .00029 -.00047 -.000235 |
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AlZ .29782 .261520 .61011 .93 .00044 .00051 .00181 .00022 0.00001 0.00011 |
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VZ .29782 .261520 .61011 .06 .00044 .00051 .00181 .00022 0.00001 0.00011 |
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TiZ .29782 .261520 .61011 .01 .00044 .00051 .00181 .00022 0.00001 0.00011 |
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SiT .19173 .189900 0 .94 .00039 .00039 .00192 .00018 -.00002 -.00009 |
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AlT .19173 .189900 0 .06 .00039 .00039 .00192 .00018 -.00002 -.00009 |
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B .10976 .219520 .45178 .00046 .00041 .00277 .000205 -.00001 -.00002 |
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OH1 0 0 .77026 .00113 .00113 .00341 .000565 0 0 |
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O2 .06085 .121700 .48140 .00099 .00048 .00541 .00024 0.00011 0.00022 |
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O3 .26387 .131935 .50919 .00187 .00104 .00242 .000935 0.00011 0.000055 |
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O4 .09306 .186120 .07162 .00075 .00157 .00398 .000785 -.00014 -.00028 |
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O5 .18444 .092220 .09256 .00180 .00071 .00420 .00090 0.00004 0.00002 |
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O6 .19548 .185760 .77616 .00087 .00082 .00218 .00044 -.00008 -.00021 |
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O7 .28559 .285360 .07803 .00073 .00063 .00294 .00014 -.00030 -.00015 |
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O8 .20903 .269840 .43879 .00036 .00080 .00484 .00027 0.00019 0.00040 |
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H3 .26150 .130750 .39010 |
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| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure (permalink)
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