Richterite Oberti R, Vannucci R, Zanetti A, Tiepolo M, Brumm R C American Mineralogist 85 (2000) 407-419 A Crystal Chemical re-evaluation of amphibole/melt and amphibole/clinopyroxene DTi values in petrogenetic studies SAMPLE 26 _database_code_amcsd 0002376 9.987 18.065 5.298 90 104.82 90 C2/m atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) O1 .11035 .08668 .22118 .0015 .0005 .0055 .0001 .0007 .0001 O2 .11724 .16915 .72312 .0014 .0007 .0069 .0000 .0011 -.0003 O3 .10549 0 .71161 .49 .0015 .0011 .0061 0 .0011 0 F3 .10549 0 .71161 .02 .0015 .0011 .0061 0 .0011 0 OH3 .10549 0 .71161 .49 .0015 .0011 .0061 0 .0011 0 O4 .36039 .24850 .79902 .0032 .0008 .0088 -.0007 .0005 -.0002 O5 .34415 .12967 .09448 .0021 .0009 .0102 .0001 .0017 .0010 O6 .34209 .11847 .59219 .0019 .0010 .0064 .0001 .0007 -.0009 O7 .33360 0 .30581 .0021 .0005 .0135 0 .0014 0 SiT1 .27720 .08511 .30103 .94 .0011 .0003 .0048 -.0001 .0006 -.0001 AlT1 .27720 .08511 .30103 .03 .0011 .0003 .0048 -.0001 .0006 -.0001 TiT1 .27720 .08511 .30103 .03 .0011 .0003 .0048 -.0001 .0006 -.0001 SiT2 .28533 .17156 .80605 .94 .0012 .0004 .0049 -.0002 .0004 .0001 AlT2 .28533 .17156 .80605 .03 .0012 .0004 .0049 -.0002 .0004 .0001 TiT2 .28533 .17156 .80605 .03 .0012 .0004 .0049 -.0002 .0004 .0001 FeM1 0 .08334 .5 .12 .0016 .0014 .0045 0 .0012 0 TiM1 0 .08334 .5 .13 .0016 .0014 .0045 0 .0012 0 MgM1 0 .08334 .5 .75 .0016 .0014 .0045 0 .0012 0 FeM2 0 .17970 0 .12 .0017 .0005 .0071 0 .0010 0 TiM2 0 .17970 0 .13 .0017 .0005 .0071 0 .0010 0 MgM2 0 .17970 0 .75 .0017 .0005 .0071 0 .0010 0 FeM3 0 0 0 .12 .0018 .0004 .0046 0 .0007 0 TiM3 0 0 0 .13 .0018 .0004 .0046 0 .0007 0 MgM3 0 0 0 .75 .0018 .0004 .0046 0 .0007 0 CaM4 0 .27680 .5 .48 .0034 .0006 .0115 0 .0041 0 NaM4 0 .27680 .5 .52 .0034 .0006 .0115 0 .0041 0 NaA 0 .5 0 .04 .0067 .0013 .0298 0 .0124 0 KA 0 .5 0 .43 .0067 .0013 .0298 0 .0124 0 NaAM .03563 .5 .07448 .04 .0060 .0012 .0220 0 .0081 0 KAM .03563 .5 .07448 .43 .0060 .0012 .0220 0 .0081 0