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Perrierite-(La) |
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Calvo C, Faggiani R |
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American Mineralogist 59 (1974) 1277-1285 |
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A re-investigation of the crystal structures of chevkinite and perrierite |
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Locality: synthetic |
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_database_code_amcsd 0000435 |
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13.818 5.677 11.787 90 113.85 90 P2_1/a |
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atom x y z occ Uiso |
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La1 .23756 .0198 .26687 .0078 |
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La2 .04897 .0265 .74320 .0087 |
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Si1 .4123 -.0001 .7322 .0057 |
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Si2 .1624 .0027 .5489 .0069 |
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Mg 0 .5 .5 .0047 |
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Ti1 -.0039 .2385 .0004 .616 .0105 |
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Mg1 -.0039 .2385 .0004 .384 .0105 |
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Ti2 .2749 .0071 .017 .884 .0068 |
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Mg2 .2749 .0071 .017 .116 .0068 |
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O1 .0794 -.2597 .1864 .0091 |
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O11 .0652 .2556 .1858 .0103 |
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O2 .2899 .2606 .1229 .0128 |
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O21 .2875 -.2401 .1225 .0105 |
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O3 .3736 -.2511 .4058 .0123 |
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O31 .3920 .2862 .4066 .0139 |
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O4 .0957 .0077 .9894 .0114 |
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O5 .4067 -.0041 .0089 .0110 |
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O6 .4932 .0328 .6667 .0150 |
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O7 .2884 -.0337 .6366 .0176 |
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O8 .1384 -.0036 .4042 .0115 |
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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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Perrierite-(La) |
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Chukanov N V, Blass G, Pekov I V, Belakovskiy D I, Van K V, |
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Rastsvetaeva R K, Aksenov S M |
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Zapiski Rossiiskogo Mineralogicheskogo Obshchetstva 140 (2011) 34-44 |
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Perrierite-(La) (La,Ce,Ca)4Fe2+(Ti,Fe)4(Si2O7)2O8 - a new mineral |
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species from volcanic region Eifel, Germany |
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Locality: Dellen pumice quarry, Eifel Mountains, Rhineland-Palatinate, Germany |
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_database_code_amcsd 0019036 |
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13.668 5.6601 11.743 90 113.64 90 P2_1/a |
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atom x y z occ Biso |
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LaA .2378 .0061 .2664 .7 1.06 |
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CaA .2378 .0061 .2664 .3 1.06 |
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LaB .0499 .0160 .7455 1.26 |
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FeM1 0 .5 .5 .5 .81 |
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MnM1 0 .5 .5 .5 .81 |
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TiM2 -.0019 .2405 .0043 .86 |
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TiM3 .2731 -.0150 .0025 .25 .56 |
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FeM3 .2731 -.0150 .0025 .25 .56 |
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AlM3 .2731 -.0150 .0025 .25 .56 |
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NbM3 .2731 -.0150 .0025 .25 .56 |
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Si1 .4117 .0054 .7347 .69 |
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Si2 .1636 -.0168 .5476 .48 |
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O1 .0757 -.2620 .1836 .8 |
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O2 .0714 .2555 .1843 1.3 |
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O3 .2889 .2529 .1248 1.2 |
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O4 .2887 -.2497 .1224 .7 |
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O5 .3776 -.2602 .4074 1.3 |
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O6 .3865 .2806 .4053 1.6 |
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O7 .0940 -.0053 .9882 1.1 |
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O8 .4090 .0164 .0095 .7 |
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O9 .4959 .0257 .6727 1.5 |
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O10 .2907 -.0266 .6331 1.7 |
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O11 .1365 -.0127 .4024 1.0 |
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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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