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Albite |
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Keefer K D, Brown G E |
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American Mineralogist 63 (1978) 1264-1273 |
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Crystal structures and compositions of sanidine and high albite in |
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cryptoperthitic intergrowth |
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Note this sample of feldspar is from the |
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Rabb Canyon pegmatite, Grant County, New Mexico, USA |
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_database_code_amcsd 0000694 |
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8.144 12.989 7.160 92.10 116.56 90.21 C-1 |
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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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Na .2690 .0048 .1319 .80 .0101 .0143 .0357 .0009 .0026 -.0113 |
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K .2690 .0048 .1319 .20 .0101 .0143 .0357 .0009 .0026 -.0113 |
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Si1o .0078 .1694 .2182 .75 .0063 .0030 .0036 -.0002 .0023 .0000 |
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Al1o .0078 .1694 .2182 .25 .0063 .0030 .0036 -.0002 .0023 .0000 |
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Si1m .0057 .8175 .2261 .75 .0059 .0030 .0036 .0006 .0017 .0005 |
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Al1m .0057 .8175 .2261 .25 .0059 .0030 .0036 .0006 .0017 .0005 |
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Si2o .6893 .1104 .3287 .75 .0050 .0029 .0050 .0000 .0012 .0003 |
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Al2o .6893 .1104 .3287 .25 .0050 .0029 .0050 .0000 .0012 .0003 |
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Si2m .6857 .8802 .3484 .75 .0051 .0029 .0045 .0003 .0013 .0003 |
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Al2m .6857 .8802 .3484 .25 .0051 .0029 .0045 .0003 .0013 .0003 |
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Oa1 .0035 .1359 .9914 .0125 .0042 .0088 -.0001 .0059 -.0003 |
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Oa2 .5913 .9943 .2821 .0071 .0035 .0091 -.0002 .0026 .0001 |
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Obo .8216 .1145 .2108 .0081 .0054 .0154 -.0011 .0074 -.0003 |
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Obm .8184 .8552 .2378 .0089 .0061 .0122 .0013 .0048 -.0001 |
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Oco .0152 .2959 .2658 .0090 .0040 .0097 -.0010 .0032 -.0004 |
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Ocm .0202 .6893 .2329 .0089 .0034 .0096 .0010 .0015 .0006 |
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Odo .1965 .1168 .3950 .0091 .0040 .0077 .0009 .0018 .0008 |
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Odm .1918 .8710 .4190 .0100 .0039 .0069 -.0004 -.0010 -.0006 |
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Sanidine |
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Keefer K D, Brown G E |
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American Mineralogist 63 (1978) 1264-1273 |
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Crystal structure and composition of sanidine and high albite in cryptoperthitic |
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intergrowth |
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Note this sample of feldspar is from the |
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Rabb Canyon pegmatite, Grant County, New Mexico, USA |
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_database_code_amcsd 0000695 |
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8.558 12.997 7.179 90 116.07 90 C2/m |
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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 .2844 0 .1383 .65 .0051 .0045 .0118 0 .0023 0 |
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Na .2844 0 .1383 .35 .0051 .0045 .0118 0 .0023 0 |
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Si1 .0091 .1834 .2236 .75 .0049 .0019 .0035 -.0004 .0022 -.0002 |
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Al1 .0091 .1834 .2236 .25 .0049 .0019 .0035 -.0004 .0022 -.0002 |
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Si2 .7069 .1177 .3431 .75 .0046 .0014 .0045 -.0001 .0020 0 |
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Al2 .7069 .1177 .3431 .25 .0046 .0014 .0045 -.0001 .0020 0 |
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Oa1 0 .1443 0 .0104 .0031 .0076 0 .0050 0 |
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Oa2 .6308 0 .2832 .0087 .0019 .0113 0 .0021 0 |
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Ob .8270 .1448 .2255 .0078 .0044 .0120 -.0009 .0058 .0005 |
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Oc .0327 .3092 .2568 .0071 .0025 .0098 -.0005 .0030 -.0006 |
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Od .1814 .1256 .4049 .0080 .0028 .0063 .0002 .0013 .0002 |
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H1.3332 Mg1.3333 O4.9999 S |
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Keefer K, Hochella M, de Jong B |
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Acta Crystallographica B37 (1981) 1003-1006 |
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The Structure of the Magnesium Hydroxide Sulfate Hydrate Mg S O4 (Mg |
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(O H)2).3333 (H2 O).3333 |
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_cod_database_code 1100075 |
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_database_code_amcsd 0018250 |
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5.242 5.242 12.995 90 90 90 *I4_1/amd |
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0 -.25 .125 |
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atom x y z occ |
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S1 0 .75 .125 |
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Mg1 0 0 .5 .666 |
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O1 0 .5195 .1895 |
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O2 0 .25 .375 |
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H1 0 .42 .41 .3333 |
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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
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