Olenite Marler B, Borowski M, Wodara U, Schreyer W European Journal of Mineralogy 14 (2002) 763-771 Synthetic tourmaline (olenite) with excess boron replacing silicon in the tetrahedral site: II. Structure analysis Sample: 2 Locality: synthetic _database_code_amcsd 0006943 15.6329 15.6329 7.0365 90 90 120 R3m atom x y z occ Biso Na 0 0 .779 .67 1.3 Al1 .0600 -.0600 .339 .96 .5 Al2 .2616 .2970 .374 .5 Si1 .1878 .1889 .9800 .70 .5 B1 .1888 .1890 .9800 .30 .5 B2 .8915 -.8915 .538 .5 OH1 0 0 .218 1.13 .9 O2 .9411 -.9411 .490 .9 O3 .1269 -.1269 .479 1.13 .9 O4 .9051 -.9051 .904 .9 O5 .0934 -.0934 .888 .9 O6 .1826 .1922 .206 .9 O7 .2834 .2848 .908 .9 O8 .2689 .2088 .546 .9