Surinamite Moore P B, Araki T American Mineralogist 68 (1983) 804-810 Surinamite, ca. Mg3Al4Si3BeO16: its crystal structure and relation to sapphirine, ca. Mg2.8Al7.2Si1.2O16 _database_code_amcsd 0000907 9.916 11.384 9.631 90 109.3 90 P2/n atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Mg1 .47718 .65733 .25876 .589 0.0072 0.0093 0.0072 -.0011 0.0035 0.0002 Fe1 .47718 .65733 .25876 .411 0.0072 0.0093 0.0072 -.0011 0.0035 0.0002 Al2 .50124 .37756 .26827 .853 0.0060 0.0066 0.0075 -.0003 0.0035 -.0003 Fe2 .50124 .37756 .26827 .147 0.0060 0.0066 0.0075 -.0003 0.0035 -.0003 Al3 .50226 .11446 .25443 .946 0.0054 0.0055 0.0059 -.0001 0.0027 -.0004 Fe3 .50226 .11446 .25443 .054 0.0054 0.0055 0.0059 -.0001 0.0027 -.0004 Al4 .25 .25314 .25 0.0085 0.0108 0.1080 0 0.0050 0 Mg5 .25 .96665 .25 .957 0.0037 0.0063 0.0065 0 0.0027 0 Fe5 .25 .96665 .25 .043 0.0037 0.0063 0.0065 0 0.0027 0 Al6 .75 .51164 .25 0.0064 0.0087 0.0071 0 0.0020 0 Mg7 .75 .25546 .25 .799 0.0046 0.0055 0.0096 0 0.0045 0 Fe7 .75 .25546 .25 .201 0.0046 0.0055 0.0096 0 0.0045 0 Mg8 .75 .97460 .25 .950 0.0038 0.0058 0.0063 0 0.0027 0 Fe8 .75 .97460 .25 .050 0.0038 0.0058 0.0063 0 0.0027 0 Al9 0 .5 .5 0.0048 0.0078 0.0059 -.0002 0.0017 0.0001 Be1 .32307 .75235 .45592 .945 0.0062 0.0063 0.0062 -.0005 0.0022 0.0004 Si1 .32307 .75235 .45592 .055 0.0062 0.0063 0.0062 -.0005 0.0022 0.0004 Si2 .07671 .88380 .44821 0.0073 0.0084 0.0071 0.0000 0.0032 0.0001 Si3 .30678 .50165 .43709 0.0074 0.0096 0.0070 -.0002 0.0029 0.0002 Si4 .56917 .88011 .44754 0.0074 0.0078 0.0066 0.0003 0.0029 -.0001 Al5 .82994 .74462 .45244 .941 0.0051 0.0047 0.0043 0.0003 0.0022 -.0003 O1 .11631 .99878 .37095 0.0072 0.0088 0.0088 -.0001 0.0038 0.0007 O2 .61382 .99424 .37191 0.0079 0.0087 0.0089 0.0005 0.0037 0.0010 O3 .87706 .11366 .37042 0.0073 0.0092 0.0075 -.0002 0.0032 0.0003 O4 .37628 .11562 .37104 0.0073 0.0087 0.0074 -.0002 0.0026 0.0003 O5 .90335 .86355 .38761 0.0070 0.0089 0.0085 -.0003 0.0023 0.0012 O6 .39954 .85556 .38810 0.0071 0.0108 0.0076 -.0011 0.0022 0.0014 O7 .61041 .24671 .36210 0.0073 0.0100 0.0083 -.0007 0.0035 0.0014 O8 .64425 .76573 .39752 0.0080 0.0088 0.0105 0.0002 0.0037 -.0008 O9 .10811 .25065 .35473 0.0072 0.0110 0.0071 -.0001 0.0025 0.0000 O10 .14913 .76935 .40286 0.0087 0.0095 0.0101 0.0002 0.0041 -.0015 O11 .35898 .62573 .39176 0.0091 0.0104 0.0094 -.0010 0.0035 0.0005 O12 .37027 .39285 .36854 0.0084 0.0129 0.0079 -.0001 0.0017 -.0008 O13 .88120 .61981 .37314 0.0072 0.0096 0.0075 0.0000 0.0026 -.0001 O14 .88412 .40015 .35382 0.0077 0.0098 0.0071 -.0008 0.0029 -.0004 O15 .63209 .50572 .37948 0.0085 0.0109 0.0096 0.0011 0.0037 -.0005 O16 .12767 .49848 .38191 0.0090 0.0111 0.0091 -.0004 0.0036 -.0004