Amstallite Quint R Neues Jahrbuch fur Mineralogie, Monatshefte 1987 (1987) 253-262 Description and crystal structure of amstallite, CaAl(OH)2[Al0.8Si3.2O8(OH)2]*[(H2O)0.8Cl0.2], a new mineral from Amstall, Austria Locality: Amstall, Austria _database_code_amcsd 0014815 18.830 11.517 5.190 90 100.86 90 C2/c atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Ca .5 .2586 .25 .0225 .0144 .0113 0 .0051 0 Al .5 .4352 .75 .0100 .0111 .0079 0 .0014 0 Si1 .2292 .4246 .6655 .60 .0107 .0126 .0115 -.0008 .0022 -.0016 Al1 .2292 .4246 .6655 .40 .0107 .0126 .0115 -.0008 .0022 -.0016 Si2 .36646 .2728 .6489 .0105 .0135 .0147 -.0028 .0031 -.0022 O1 .2129 .5348 .4563 .0279 .0257 .0167 .0018 .0047 -.0019 O2 .3270 .1839 .4303 .0225 .0227 .0224 -.0098 .0031 -.0071 O3 .3141 .3795 .6903 .0161 .0243 .0427 .0013 .0068 -.0109 O4 .4388 .3225 .5721 .0126 .0175 .0122 -.0054 .0031 -.0030 O5 .3915 .2046 .9308 .0293 .0332 .0176 -.0136 .0037 .0067 O6 .5508 .4429 .4614 .0085 .0152 .0105 .0014 .0013 .0004 Cl .4888 .0389 .2943 .10 .1065 .0477 .0594 -.0408 .0162 -.0089 Wat7 .4888 .0389 .2943 .40 .1065 .0477 .0594 -.0408 .0162 -.0089 H1 .365 .164 .964 .0044 H2 .584 .446 .490 .0044