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Chegemite |
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Galuskin E V, Gazeev V M, Lazic B, Armbruster T, Galuskina I O, Zadov A E, |
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Pertsev N N, Wrzalik R, Dzierzanowski P, Gurbanov A G, Bzowska G |
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European Journal of Mineralogy 21 (2009) 1045-1059 |
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Chegemite Ca7(SiO4)3(OH)2 - a new humite-group mineral from the Northern Caucasus, |
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Kabardino-Balkaria, Russia |
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Locality: in the high-temperature skarns in calcareous xenoliths in ignimbrites of |
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the Upper Chegem volcanic structure, Northern Caucasus, Kabardino-Balkaria, Russia |
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_database_code_amcsd 0007334 |
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5.0696 11.3955 23.5571 90 90 90 Pbnm |
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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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Ca1 .50376 .37818 .176543 .00886 .00768 .01069 .00821 -.00048 -.00120 -.00192 |
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Ca2 -.50687 .65807 .25 .00771 .00827 .00673 .00813 .00048 .000 .000 |
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Ca3 -.00244 .59346 .111399 .00850 .00964 .00691 .00895 -.00077 .00066 .00051 |
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Ca4 .50746 .36064 .027895 .00915 .00957 .00944 .00843 -.00042 .00127 .00022 |
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Si1 -.07130 .47112 .25 .00608 .0047 .0067 .0069 .00016 .000 .000 |
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Si2 .07409 .27988 .107074 .00620 .00551 .00669 .00640 -.00003 -.00011 -.00006 |
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O1 -.7511 .47020 .25 .0094 .0071 .0111 .0100 .0001 .000 .000 |
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O2 -.2981 .83850 .25 .0083 .0082 .0078 .0089 .0001 .000 .000 |
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O3 -.20219 .53681 .19476 .00867 .0093 .0090 .0077 .0008 -.0001 .0011 |
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O4 .7539 .27935 .10590 .0094 .0066 .0103 .0112 -.0002 -.0006 -.0002 |
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O5 .20452 .41215 .10440 .00884 .0088 .0077 .0100 .0004 -.0002 -.0006 |
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O6 .29695 .71759 .16372 .00896 .0086 .0099 .0084 .0001 -.0003 .0013 |
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O7 .20452 .21020 .05265 .00905 .0087 .0096 .0089 -.0001 .0004 -.0018 |
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F8 .7518 .53095 .03410 .12 .0214 .0259 .0109 .0274 -.0042 -.0193 .0030 |
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O8 .7518 .53095 .03410 .88 .0214 .0259 .0109 .0274 -.0042 -.0193 .0030 |
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H1 .912 .502 .019 .44 .050 |
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H2 .619 .540 .0593 .44 .050 |
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View JMOL 3-D Structure (permalink) |
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