Chondrodite Ottolini L, Camara F, Bigi S American Mineralogist 85 (2000) 89-102 An investigation of matrix effects in the analysis of fluorine in humite-group minerals by EMPA, SIMS, and SREF Sample: Chum HV-41 n.2 _database_code_amcsd 0002337 4.7405 10.2377 13.6496 100.843 90 90 P2_1/b atom x y z occ Biso Si1 .07329 .06623 .38930 .31 Si2 .07641 .17670 .83511 .31 Mg1A .5 0 .5 .46 Mg1B .49743 .94627 .27421 .48 Mg25 .00928 .14038 .17026 .49 Mg26 .50876 .25023 .38825 .45 Mg3 .49277 .87792 .04299 .52 O11 .73294 .06451 .38811 .41 O12 .27787 .41947 .38776 .40 O13 .22308 .11240 .29312 .43 O14 .22238 .15881 .48636 .43 O21 .23624 .32276 .16287 .40 O22 .77897 .96885 .16257 .44 O23 .72430 .27994 .26273 .45 O24 .72808 .22680 .07021 .45 F5 .26152 .04630 .05566 .64 .68 O5 .26152 .04630 .05566 .36 .68 H .067 -.021 .013 .33 4.51