Heulandite-Ca
	Mortier W J, Pearce J R
	American Mineralogist 66 (1981) 309-314
	Thermal stability of the heulandite-type framework: Crystal structure of the
	calcium/ammonium form dehydrated at 483K
	_database_code_amcsd 0000810
	17.158 17.433 7.388 90 113.41 90 C2/m
	atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
	Ca1 .2591 .5 .0820 .603 0.0137 0.0044 0.0664 0 0.0082 0
	Ca2 .0326 0 .2901 .190 0.0052 0.0037 0.0504 0 0.0092 0
	Si1 .3200 .1632 .2343 .769 0.0014 0.0029 0.0086 0.0002 0.0011 0.0006
	Al1 .3200 .1632 .2343 .231 0.0014 0.0029 0.0086 0.0002 0.0011 0.0006
	Si2 .0668 .2137 .2154 .769 0.0019 0.0026 0.0090 0.0005 0.0015 0.0002
	Al2 .0668 .2137 .2154 .231 0.0019 0.0026 0.0090 0.0005 0.0015 0.0002
	Si3 .2162 .3145 .2018 .769 0.0026 0.0026 0.0092 0.0000 0.0022 0.0001
	Al3 .2162 .3145 .2018 .231 0.0026 0.0026 0.0092 0.0000 0.0022 0.0001
	Si4 .2020 .0895 .4121 .769 0.0028 0.0016 0.0119 0.0001 0.0024 0.0001
	Al4 .2020 .0895 .4121 .231 0.0028 0.0016 0.0119 0.0001 0.0024 0.0001
	Si5 0 .2956 .5 .769 0.0016 0.0024 0.0102 0 0.0019 0
	Al5 0 .2956 .5 .231 0.0016 0.0024 0.0102 0 0.0019 0
	O1 .4190 .1504 .3841 0.0019 0.0030 0.0189 0.0001 -.0003 0.0006
	O2 .2906 .2513 .2421 0.0032 0.0031 0.0149 0.0010 0.0017 0.0006
	O3 .3068 .1409 .0091 0.0043 0.0049 0.0128 0.0011 0.0033 0.0006
	O4 .0170 .2408 .3462 0.0052 0.0046 0.0347 -.0008 0.0089 -.0054
	O5 .2627 .1018 .2909 0.0032 0.0047 0.0271 -.0007 0.0049 0.0022
	O6 .1117 .1337 .3046 0.0043 0.0041 0.0401 0.0015 0.0057 0.0033
	O7 .2520 .3862 .3558 0.0068 0.0065 0.0160 0.0005 0.0014 -.0034
	O8 .1345 .2768 .2172 0.0054 0.0045 0.0522 -.0002 0.0117 0.0030
	O9 .1765 0 .4097 0.0071 0.0020 0.0580 0 0.0144 0
	O10 0 .1948 0 0.0109 0.0070 0.0087 0 -.0039 0
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