Clinoptilolite-K Armbruster T American Mineralogist 78 (1993) 260-264 Dehydration mechanism of clinoptilolite and heulandite: Single-crystal X-ray study of Na-poor, Ca-, K-, Mg-rich clinoptilolite at 100 K Sample Dehyd 2 Data obtained from the ICSD _database_code_amcsd 0001549 17.619 17.503 7.371 90 116.71 90 C2/m atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Si1 .1799 .1650 .0955 .8 .0152 .0395 .0214 -.0023 .0085 .0017 Al1 .1799 .1650 .0955 .2 .0152 .0395 .0214 -.0023 .0085 .0017 Si2 .2938 .0894 .5050 .7 .0300 .0227 .0267 -.0007 .0154 -.0007 Al2 .2938 .0894 .5050 .3 .0300 .0227 .0267 -.0007 .0154 -.0007 Si3 .2882 .3131 .2759 .83 .0269 .0347 .0228 -.0018 .0147 -.0008 Al3 .2882 .3131 .2759 .17 .0269 .0347 .0228 -.0018 .0147 -.0008 Si4 .0657 .2911 .4158 .84 .0219 .0397 .0216 -.0052 .0116 -.0039 Al4 .0657 .2911 .4158 .16 .0219 .0397 .0216 -.0052 .0116 -.0039 Si5 0 .2086 0 .92 .0190 .0330 .0210 0 .0072 0 Al5 0 .2086 0 .08 .0190 .0330 .0210 0 .0072 0 O1 .3142 0 .5550 .0840 .0260 .0590 0 .0080 0 O2 .2431 .1177 .6308 .0820 .0840 .0800 -.0180 .0640 -.0350 O3 .1903 .1443 -.1084 .0460 .0600 .0320 -.0160 .0240 -.0090 O4 .2371 .1011 .2618 0.05 .0290 .0620 .0380 .0050 .0080 .0140 O5 0 .3158 .5 .1000 .0980 .1010 0 .0920 0 O6 .0815 .1553 .0516 .0190 .0430 .0510 -.0020 .0190 .0030 O7 .3711 .2745 .4483 .0590 .0600 .0530 .0080 -.0030 .0240 O8 .0136 .2625 .1883 .0530 .0650 .0350 .0050 .0080 .0200 O9 .2127 .2510 .1701 .0360 .0400 .0390 -.0110 .0230 .0050 O10 .1158 .3671 .4144 .0410 .0590 .0620 -.0190 .0140 .0050 Na .208 0 .788 .21 .1500 .0200 .1200 0 .1000 0 Ca .456 0 .728 .11 .0500 .0500 .0700 0 .0100 0 Ba .2442 .5 .0635 .08 .0970 .0230 .0870 0 .0490 0 K1 .2442 .5 .0635 .43 .0970 .0230 .0870 0 .0490 0 K2 .220 0 .010 .1 0.05 OH11 .086 0 .886 .27 .0400 .0700 .1600 0 -.0100 0 OH12 .396 .920 .075 .39 .2600 1.1000 .5600 -.3600 -.1800 .4000 OH13 0 .5 .5 .4 .1600 .1000 .3400 0 .1800 0 OH14 .106 0 .110 .04