Uvarovite Wildner M, Andrut M American Mineralogist 86 (2001) 1231-1251 The crystal chemistry of birefringent natural uvarovites: Part II. Single-crystal X-ray structures Sample: Sar-899 _database_code_amcsd 0002724 11.959 16.958 16.958 90 90 90 *Fddd .125 .125 .125 atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Ca11256 .00019 .06251 -.18750 .0056 .0063 .0051 .0053 -.0007 .0007 -.0011 Ca23 -1/8 -1/8 -1/8 .0055 .0039 .0053 .0074 0 0 0 Ca34 -3/8 -3/8 -3/8 .0055 .0039 .0072 .0055 0 0 0 Cr11367 0 0 0 .888 .0038 .0037 .0036 .0040 -.0000 .0001 .0000 Al11367 0 0 0 .112 .0038 .0037 .0036 .0040 -.0000 .0001 .0000 Cr22458 0 0 -1/2 .535 .0036 .0035 .0036 .0037 .0000 .0000 -.0001 Al22458 0 0 -1/2 .465 .0036 .0035 .0036 .0037 .0000 .0000 -.0001 Si11256 .00068 -.06221 -.31277 .0041 .0041 .0038 .0043 .0001 .0001 -.0001 Si234 -.37565 -1/8 -1/8 .0041 .0037 .0040 .0045 0 0 .0002 O1 -.04628 .30693 -.34570 .0055 .0059 .0056 .0051 -.0001 .0006 .0001 O2 .04757 .34657 -.80752 .0052 .0058 .0045 .0053 .0004 -.0000 .0004 O3 -.03936 -.30325 -.35060 .0055 .0057 .0050 .0057 -.0002 -.0002 -.0007 O4 -.46170 -.59976 -.55307 .0056 .0056 .0065 .0047 .0000 .0004 -.0005 O5 -.65255 -.00410 -.04280 .0054 .0050 .0052 .0061 .0003 .0002 .0003 O6 .15414 -.29305 -.25395 .0055 .0047 .0061 .0056 .0001 -.0006 .0004