Fluoro-eckermannite
	Oberti R, Hawthorne F C, Camara F, Raudsepp M
	American Mineralogist 84 (1999) 102-111
	Unusual M3+ cations in synthetic amphiboles with nominal fluoro-eckermannite
	composition: Deviations from stoichiometry and structural effects of the
	cummingtonite component
	Sample: Ti, Na.85Na1.02Mg.98Mg4.83Ti.17Si8O22F2
	_database_code_amcsd 0002057
	9.691 17.930 5.284 90 102.98 90 C2/m
	atom x y z occ Biso
	Si(1) .2840 .0848 .2851 .60
	Si(2) .2916 .1707 .7907 .59
	Mg(1) 0 .0887 .5 .59
	Ti(2) 0 .1796 0 .09 .67
	Mg(2) 0 .1796 0 .91 .67
	Mg(3) 0 0 0 .50
	Na(4) 0 .2655 .5 .45 1.96
	Mg(4) 0 .2655 .5 .55 1.96
	NaA 0 .5 0 .27 2.72
	NaA(m) .0462 .5 .1034 .33 2.38
	O1 .1137 .0849 .2136 .55
	O2 .1199 .1692 .7230 .82
	F3 .1037 0 .7080 .78
	O4 .3678 .2489 .7848 1.70
	O5 .3505 .1283 .0718 1.48
	O6 .3467 .1183 .5720 1.76
	O7 .3456 0 .2812 1.07
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