Heidornite Burzlaff H Neues Jahrbuch fur Mineralogie, Monatshefte 1967 (1967) 157-169 Die struktur des heidornit Ca3Na2Cl(SO4)2B5O8(OH)2 _database_code_amcsd 0014732 10.21 7.84 18.79 90 93.5 90 C2/c atom x y z Biso Ca1 0 .3933 .25 .31 Ca2 .4100 .2425 .40308 .47 Na .1564 .2781 .0770 1.55 Cl 0 0 0 1.02 S .1371 .4779 .42205 .47 O11 .0129 .4537 .3757 1.32 O12 .1407 .3531 .4795 1.59 O13 .2503 .4555 .3780 1.55 O14 .1350 .6534 .4502 1.30 B1 .3348 .4866 .1829 .6 B2 .2620 .2314 .2504 .5 B3 .5 .3054 .25 .89 O21 .1552 .1419 .2717 .85 O22 .2278 .3716 .2098 .67 O23 .4616 .4004 .1845 .72 O24 .3899 .1893 .2706 .77 O25 .2799 .5355 .1116 .77 H .1934 .0167 .4465 .72