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Phase-X |
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Yang H, Konzett J, Prewitt C T |
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American Mineralogist 86 (2001) 1483-1488 |
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Crystal structure of phase X, a high pressure alkali-rich hydrous silicate |
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and its anhydrous equivalent |
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Sample: JKW42 |
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_database_code_amcsd 0002744 |
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4.9827 4.9827 6.4354 90 90 120 P-31m |
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atom x y z occ Uiso |
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NaA 1/3 2/3 1/2 .89 .042 |
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MgM 2/3 1/3 0 .94 .011 |
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AlM 2/3 1/3 0 .06 .011 |
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Si 0 0 .2480 .009 |
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O1 0 0 1/2 .054 |
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O2 .3187 0 .8156 .015 |
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| Download AMC data (View Text File)
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Download diffraction data (View Text File)
View JMOL 3-D Structure (permalink)
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Phase-X |
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Yang H, Konzett J, Prewitt C T |
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American Mineralogist 86 (2001) 1483-1488 |
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Crystal structure of phase X, a high pressure alkali-rich hydrous silicate |
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and its anhydrous equivalent |
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Sample: JKW56 |
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_database_code_amcsd 0002745 |
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5.0812 5.0812 13.2112 90 90 120 P6_3cm |
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atom x y z occ Uiso |
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KA 1/3 2/3 .2072 .77 .017 |
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MgM 1/3 2/3 .4541 .96 .008 |
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Si1 0 0 .0792 .002 |
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Si2 0 0 .3347 .008 |
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O1 0 0 .2056 .010 |
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O2 .3102 0 .0458 .009 |
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O3 .3081 0 .3634 .006 |
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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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Phase-X |
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Mancini F, Harlow G E, Cahill C L |
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American Mineralogist 87 (2002) 302-306 |
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The crystal structure and cation ordering of phase-X - |
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(K1-x-n)2(Mg1-n[Al,Cr]n)2Si2O7H2x: A potential K- and H-bearing |
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phase in the mantle |
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_database_code_amcsd 0002757 |
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5.028 5.028 13.216 90 90 120 P6_3cm |
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atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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Si1 0 0 .0127 .0102 .0102 .0065 .0051 0 0 |
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Si2 0 0 .2602 .0069 .0069 .0001 .00345 0 0 |
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MgM -1/3 1/3 .1377 .92 .0080 .0080 .0137 .0040 0 0 |
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AlM -1/3 1/3 .1377 .03 .0080 .0080 .0137 .0040 0 0 |
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CrM -1/3 1/3 .1377 .01 .0080 .0080 .0137 .0040 0 0 |
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K .3532 .6453 .3875 .0153 .0239 .0082 -.0030 .0026 -.0001 |
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O1 .3124 0 .2284 .0051 .0035 .0052 .00175 .0005 0 |
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O2 0 0 -.1110 .0201 .0201 .0084 .01005 0 0 |
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O3 -.3106 0 .0493 .0153 .0201 .0190 .01005 -.0004 0 |
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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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Phase-X |
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Welch M D, Konzett J, Bindi L, Kohn S C, Frost D J |
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American Mineralogist 97 (2012) 1849-1857 |
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New structural features of the high-pressure synthetic |
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sheet-disilicate Phase-X, K(2-x)Mg2Si2O7Hx |
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Locality: synthetic |
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_database_code_amcsd 0019573 |
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5.0646 5.0646 13.2379 90 90 120 P6_3/mcm |
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atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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K .354 .644 .25 .25 .024 .015 .026 .0086 -.008 0 0 |
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H 0 .46 .14 1/12 |
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Mg 1/3 2/3 0 .0119 .0128 .0128 .0102 .0064 0 0 |
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Si 0 0 .12314 .0079 .0094 .0094 .0048 .0047 0 0 |
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O1 0 0 .25 .0119 .016 .016 .004 .0078 0 0 |
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O2 .3099 0 .4100 .0094 .0089 .0106 .0091 .0053 -.0009 0 |
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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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