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 3 Data obtained from the ICSD _database_code_amcsd 0001550 17.610 17.456 7.360 90 116.77 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 .1800 .1644 .0954 .8 .0164 .0440 .0241 -.0021 .0092 .0023 Al1 .1800 .1644 .0954 .2 .0164 .0440 .0241 -.0021 .0092 .0023 Si2 .2944 .0893 .5055 .7 .0319 .0257 .0299 -.0006 .0162 -.0005 Al2 .2944 .0893 .5055 .3 .0319 .0257 .0299 -.0006 .0162 -.0005 Si3 .2878 .3134 .2752 .83 .0303 .0400 .0264 -.0033 .0164 -.0015 Al3 .2878 .3134 .2752 .17 .0303 .0400 .0264 -.0033 .0164 -.0015 Si4 .0658 .2904 .4165 .84 .0242 .0450 .0234 -.0052 .0121 -.0034 Al4 .0658 .2904 .4165 .16 .0242 .0450 .0234 -.0052 .0121 -.0034 Si5 0 .2082 0 .92 .0200 .0380 .0240 0 .0078 0 Al5 0 .2082 0 .08 .0200 .0380 .0240 0 .0078 0 O1 .3144 0 .556 .0870 .0300 .0680 0 .0060 0 O2 .2441 .1175 .6321 .0850 .0920 .0880 -.0170 .0680 -.0390 O3 .1907 .1431 -.1079 .0480 .0640 .0350 -.0180 .0240 .0110 O4 .2373 .1005 .2631 0.05 .0330 .0690 .0400 .0050 .0080 .0160 O5 0 .3146 .5 .1090 .1070 .1120 0 .1000 0 O6 .0814 .1549 .0507 .0230 .0470 .0570 -.0030 .0220 .0010 O7 .3709 .2752 .4481 .0620 .0660 .0540 .0090 -.0050 .0240 O8 .0140 .2621 .1877 .0570 .0700 .0370 .0050 .0050 -.0230 O9 .2129 .2505 .1693 .0390 .0420 .0440 -.0120 .0270 -.0050 O10 .116 .3665 .4165 .0470 .0640 .0690 -.0200 .0160 .0040 Na .214 0 .800 .19 .1100 .0300 .1000 0 .0600 0 Ca .454 0 .718 .08 .0600 .0500 .0700 0 .0100 0 Ba .244 .5 .064 .08 .0860 .0250 .0950 0 .0450 0 K1 .244 .5 .064 .46 .0860 .0250 .0950 0 .0450 0 K2 .220 0 .010 .08 0.05 OH11 .084 0 .897 .21 .0300 .1000 .1400 0 .0000 0 OH12 .392 .922 .070 .37 .1600 1.3000 .7000 -.3500 -.1900 .7000 OH13 0 .5 .5 .4 .1800 .1500 .3400 0 .1900 0 OH14 .116 0 .130 .06