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Leonhardite |
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Baur W H, Joswig W, Fursenko B A, Belitsky I A |
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European Journal of Mineralogy 9 (1997) 1173-1182 |
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Symmetry reduction of the aluminosilicate framework of LAU topology |
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by ordering of exchangeable cations: the crystal structure of primary leonhardite |
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with a primitive Bravais lattice |
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_database_code_amcsd 0006703 |
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14.556 13.206 7.513 90 110.75 90 P2/a |
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atom x y z occ Uiso |
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K1 1/4 .56843 0 .795 .0393 |
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Na11 3/4 .0867 0 .342 .194 |
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Na12 .6833 .1219 .8918 .139 .030 |
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Ca1 .51639 .24748 .73635 .638 .0190 |
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Si11 .48790 .36713 .14686 .962 .0071 |
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Al11 .48790 .36713 .14686 .038 .0071 |
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Si12 .48996 .13338 .15051 .968 .0072 |
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Al12 .48996 .13338 .15051 .032 .0072 |
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Si21 .32884 .13316 .32172 .971 .0082 |
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Al21 .32884 .13316 .32172 .029 .0082 |
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Si22 .32755 .36450 .31796 .969 .0081 |
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Al22 .32755 .36450 .31796 .031 .0081 |
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Al11 .38114 .05784 .73368 .954 .0082 |
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Si11 .38114 .05784 .73368 .046 .0082 |
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Al12 .38373 .44011 .72875 .952 .0085 |
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Si12 .38373 .44011 .72875 .048 .0085 |
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O1 .51440 .25064 .2169 .0156 |
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O21 .46730 .37487 .9220 .0153 |
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O22 .46477 .12368 .9246 .0153 |
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O31 .39297 .12852 .5461 .0165 |
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O32 .39619 .37078 .5403 .0157 |
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O41 .39034 .40191 .1883 .0167 |
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O42 .39638 .09655 .2020 .0174 |
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O51 .41977 .56544 .7300 .0156 |
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O52 .58505 .06826 .2692 .0162 |
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O6 .29354 .24850 .2640 .0168 |
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O71 .26227 .05763 .7319 .0165 |
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O72 .26536 .43752 .7307 .0161 |
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Wat1 .6150 .1213 .6730 .0525 |
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Wat2 .6336 .3375 .6421 .0503 |
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Wat3 .6628 .2514 .0273 .0290 |
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Wat4 3/4 .1932 1/2 .97 .0482 |
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