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: Chond HV-43 n.3 _database_code_amcsd 0002339 4.7230 10.2584 7.8504 109.076 90 90 P2_1/b atom x y z occ Biso Si .07656 .14403 .70374 .35 Mg1 .5 0 .5 .52 Mg2 .00943 .17358 .30654 .49 Mg3 .49214 .88645 .07927 .49 O1 .77761 .00156 .29407 .46 O2 .72731 .24074 .12567 .42 O3 .22439 .16824 .52798 .41 O4 .26401 .85487 .29478 .39 F5 .26227 .05742 .10053 .62 .68 O5 .26227 .05742 .10053 .38 .68 H .143 .024 .021 .38 3.79