Elbaite Ertl A, Tillmanns E, Ntaflos T, Francis C, Giester G, Korner W, Hughes J M, Lengauer C, Prem M European Journal of Mineralogy 20 (2008) 881-888 Tetrahedrally coordinated boron in Al-rich tourmaline and its relationship to the pressure-temperature conditions of formation Locality: Sahatany Pegmatite Field, Manjaka, Sahatany Valley, Madagascar Note: O5 and O6 z-coordinates changed to match reported bond lengths _database_code_amcsd 0007264 15.777 15.777 7.086 90 90 120 R3m atom x y z occ Uiso NaX 0 0 .2446 .53 .0225 CaX 0 0 .2446 .09 .0225 AlY .12079 .06040 -.34151 .667 .00799 LiY .12079 .06040 -.34151 .3 .00799 MnY .12079 .06040 -.34151 .03 .00799 FeY .12079 .06040 -.34151 .003 .00799 AlZ .29673 .26008 -.37240 .00647 BT .19141 .18948 .01964 .065 .00539 SiT .19141 .18948 .01964 .935 .00539 B .10901 .21802 .4727 .0063 O1 0 0 -.2045 .4 .0186 OH1 0 0 -.2045 .6 .0186 O2 .06021 .12042 .5106 .0130 O3 .26139 .13069 -.47306 .01174 O4 .09413 .18826 .09350 .00982 O5 .18697 .09348 .11479 .01015 O6 .19427 .18381 -.20587 .00768 O7 .28625 .28584 .09589 .00718 O8 .20953 .27006 .45705 .00766 H3 .256 .1282 .411 .045