Dravite
	Vereshchagin O S, Rozhdestvenskaya I V, Frank-Kamenetskaya O V, Zolotarev A A
	European Journal of Mineralogy 26 (2014) 309-321
	Ion substitutions and structural adjustment in Cr-bearing tourmalines
	Note: Sample 1
	Locality: Shabrovskoe ore district, Middle Urals, Russia
	_database_code_amcsd 0020154
	15.926 15.926 7.210 90 90 120 R3m
	atom x y z occ Uiso
	CaX 0 0 .2300 .06 .0197
	NaX 0 0 .2300 .64 .0197
	AlY .12375 .06188 .6359 .62 .0059
	CrY .12375 .06188 .6359 .08 .0059
	FeY .12375 .06188 .6359 .02 .0059
	MgY .12375 .06188 .6359 .28 .0059
	AlZ .29791 .26162 .6110 .62 .0041
	CrZ .29791 .26162 .6110 .08 .0041
	FeZ .29791 .26162 .6110 .02 .0041
	MgZ .29791 .26162 .6110 .28 .0041
	SiT .19143 .18963 0 .98 .0049
	AlT .19143 .18963 0 .02 .0049
	B .1097 .2194 .4546 .0081
	OHw 0 0 .7690 .99 .012
	O1w 0 0 .7690 .01 .012
	O2 .06065 .12130 .4884 .0110
	OHv .2598 .1299 .5116 .99 .0121
	O3v .2598 .1299 .5116 .01 .0121
	O4 .0931 .1862 .0716 .0119
	O5 .1838 .0919 .0929 .0106
	O6 .1941 .1845 .7781 .0089
	O7 .2849 .2848 .0780 .0088
	O8 .2088 .2695 .4406 .0110
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