Tunellite Clark J R American Mineralogist 49 (1964) 1549-1568 The crystal structure of tunellite, SrB6O9(OH)2.3H2O Locality: Jenifer mine, Kramer borate district, California, USA _database_code_amcsd 0000129 14.390 8.213 9.934 90 114.03 90 P2_1/a atom x y z Biso Sr .1621 .0562 .1949 1.23 B1 .1941 .1509 .8490 1.31 B2 .1940 .1561 .5854 .88 B3 .0429 .2475 .6248 1.24 B4 .1867 .4550 .2202 .75 B5 .2534 .3889 .4865 1.27 B6 .2513 .3883 .0221 1.20 O1 .1944 .0254 .9525 1.67 O2 .2028 .0376 .4823 1.83 OH3 .0501 .6806 .4257 1.99 Wat4 .9982 .1682 .2383 2.44 OH5 .0905 .5360 .1721 2.10 O6 .2417 .7988 .3989 1.46 O7 .2079 .3413 .3396 1.56 O8 .2382 .7853 .0815 1.53 O9 .1941 .3498 .1011 1.47 O10 .0889 .2117 .7728 1.28 O11 .0871 .2102 .5344 1.23 Wat12 .0208 .8401 .0676 1.59 Wat13 .1392 .5802 .7117 2.01 O14 .2272 .0828 .7338 1.06