Beryl Aurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F American Mineralogist 73 (1988) 826-837 Reappraisal of the crystal chemistry of beryl Sample: 7 Locality: Violet Claims, Wah Wah Mountains, Beaver County, Utah, USA _database_code_amcsd 0001177 9.2364 9.2364 9.1933 90 90 120 P6/mcc atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Si1 .3864 .1147 0 .0045 .0041 .0031 .0023 0 0 Be .5 0 .25 .98 .006 Li .5 0 .25 .004 .006 Si2 .5 0 .25 .015 .006 Al1 .5 0 .25 .001 .006 Al2 2/3 1/3 .25 .859 .0050 .0050 .0036 .0025 0 0 Fe1 2/3 1/3 .25 .015 .0050 .0050 .0036 .0025 0 0 Fe2 2/3 1/3 .25 .071 .0050 .0050 .0036 .0025 0 0 Mn 2/3 1/3 .25 .025 .0050 .0050 .0036 .0025 0 0 Mg 2/3 1/3 .25 .012 .0050 .0050 .0036 .0025 0 0 Ti 2/3 1/3 .25 .019 .0050 .0050 .0036 .0025 0 0 O1 .3095 .2359 0 .0113 .0090 .0129 .0074 0 0 O2 .4976 .1445 .1451 .0091 .0075 .0055 .0046 -.0024 -.0005 Na 0 0 .25 .053 .0056 .0056 .0567 .0028 0 0 K 0 0 .25 .026 .0056 .0056 .0567 .0028 0 0 Cs 0 0 .25 .013 .0056 .0056 .0567 .0028 0 0 Rb 0 0 .25 .003 .0056 .0056 .0567 .0028 0 0