Serandite
	Williams E R, Weller M T
	American Mineralogist 99 (2014) 1755-1760
	A variable-temperature neutron diffraction study of serandite: A Mn-silicate
	framework with a very strong, two-proton site, hydrogen bond
	Note: T = 575 K
	Locality: Mont St. Hilaire, Quebec, Canada
	_database_code_amcsd 0020405
	7.7283 6.9174 6.7608 90.362 94.016 102.822 P-1
	atom x y z occ Uiso
	Mn1 .8444 .5831 .1385 .0158
	Mn2 .8552 .0917 .1343 .9258 .009
	Ca2 .8552 .0917 .1343 .0742 .009
	Na1 .5644 .2601 .3646 .042
	Si1 .2129 .4144 .3476 .0121
	Si2 .2072 .9513 .3465 .0121
	Si3 .4528 .7344 .1476 .0121
	O1 .6638 .7917 .1093 .0173
	O2 .3240 .7058 .9393 .0173
	O3 .1776 .4929 .5511 .0173
	O4 .1599 .8410 .5607 .0173
	O5 .0633 .3964 .1667 .0173
	O6 .0549 .8951 .1746 .0173
	O7 .4045 .5370 .2770 .0173
	O8 .3977 .9117 .2800 .0173
	O9 .2576 .1849 .3907 .0173
	H16 .135 .628 .551 .55 .044
	H17 .155 .703 .524 .45 .044
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