Cumengeite
	Hawthorne F C, Groat L A
	Mineralogical Magazine 50 (1986) 157-162
	The crystal structure and chemical composition of cumengeite
	Locality: Boleo, Baja California, Mexico
	_database_code_amcsd 0014482
	15.065 15.065 24.436 90 90 90 I4/mmm
	atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
	Pb1 0 0 0 .040 .037 .037 .046 0 0 0
	Pb2 0 0 .3199 .046 .044 .044 .051 0 0 0
	Pb3 .27634 0 .23459 .039 .039 .037 .039 0 .000 0
	Pb4 .19780 .19780 .36453 .038 .038 .038 .038 -.003 -.003 -.002
	Pb5 .5 0 .4104 .5 .039 .039 .036 .040 0 0 0
	Cu1 .2599 .0962 .0910 .034 .037 .031 .035 .002 .005 .000
	Cu2 .2610 .2610 0 .037 .040 .040 .030 0 0 .005
	Cl1 .1318 .1318 0 .051 .056 .056 .040 0 0 -.020
	Cl2 .3815 .1269 .1786 .045 .043 .051 .042 .006 -.005 -.005
	Cl3 0 0 .1187 .047 .041 .041 .058 0 0 0
	Cl4 .1696 0 .3765 .061 .060 .036 .086 0 -.020 0
	Cl5 .1274 .1274 .2461 .049 .053 .053 .042 .007 .007 .014
	Cl6 .3701 0 .5 .072 .042 .034 .139 0 0 0
	OH1 .3007 .1762 .4412 .032 .037 .037 .022 -.004 .011 .007
	OH2 .1850 .1850 .1275 .038 .044 .044 .027 .003 .003 .004
	OH3 .2120 0 .1357 .039 .048 .025 .043 0 -.012 0
	OH4 .3272 0 .0571 .037 .037 .035 .038 0 .003 0
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