Tuzlaite Bermanec V, Armbruster T, Tibljas D, Sturman D, Kniewald G American Mineralogist 79 (1994) 562-569 Tuzlaite, NaCa[B5O8(OH)2].3H2O, a new mineral with a pentaborate sheet structure from the Tuzla salt mine, Bosnia and Hercegovina _database_code_amcsd 0001662 6.506 13.280 11.462 90 92.97 90 P2_1/c atom x y z Biso Ca .2098 .89462 .08216 .93 Na .3365 .9842 .3555 1.88 O1 .1026 .0914 .0545 .78 O2 -.1367 .8327 .2282 1.17 O3 .4159 .0519 .1541 .96 O4 .3098 .2278 .1374 1.10 O5 -.2355 .0885 .1190 .96 O6 .6756 .9823 .2754 1.11 OW7 .3315 .8150 .2692 1.53 Oh8 .5789 .8617 .0321 1.12 O9 .0286 .9889 .2199 .98 OW10 .1533 .7126 .0571 1.62 Oh11 .0475 .0776 .5934 1.47 O12 -.0220 .8302 -.2380 1.16 OW13 .5450 .8800 .5267 2.64 B1 .6216 .0410 .1812 .81 B2 .3128 .1275 .0750 .83 B3 -.1597 .7440 .2859 .88 B4 -.1221 .9343 .2827 .95 B5 -.0160 .0828 .1597 .79 H1 .250 .772 .283 2.37 H2 .445 .789 .293 2.37 H3 .665 .852 .084 2.37 H4 .090 .691 .121 2.37 H5 .082 .685 -.001 2.37 H6 .907 .955 .444 2.37 H7 .443 .850 .546 2.37 H8 .610 .829 .495 2.37