Tremolite Sueno S, Cameron M, Papike J J, Prewitt C T American Mineralogist 58 (1973) 649-664 The high temperature crystal chemistry of tremolite T = 400 C _database_code_amcsd 0000368 9.86 18.118 5.285 90 104.57 90 C2/m atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Si1 .2798 .0839 .2955 .00223 .00049 .00875 -.00009 .00140 -.00007 Si2 .2882 .1707 .8032 .00215 .00055 .00818 -.00022 .00158 -.00013 Mg1 0 .0877 1/2 .00312 .00066 .01060 0 .00220 0 Mg2 0 .1770 0 .00301 .00064 .00967 0 .00240 0 Mg3 0 0 0 .00307 .00060 .01012 0 .00173 0 Ca4 0 .2776 1/2 .00521 .00088 .01925 0 .00676 0 O1 .1117 .0862 .2171 .00250 .00072 .01208 -.00003 .00189 -.00013 O2 .1190 .1712 .7235 .00236 .00087 .01166 -.00005 .00153 -.00018 OH3 .1104 0 .7157 .00385 .00087 .01257 0 .00240 0 O4 .3658 .2470 .7951 .00471 .00077 .01608 -.00076 .00372 -.00034 O5 .3451 .1326 .0950 .00334 .00117 .01015 -.00007 .00181 .00107 O6 .3429 .1192 .5844 .00366 .00112 .01043 .00008 .00204 -.00096 O7 .3354 0 .2946 .00370 .00053 .02130 0 .00345 0