Heulandite-Ca Comodi P, Gatta G D, Zanazzi P F European Journal of Mineralogy 13 (2001) 497-505 High-pressure structural behaviour of heulandite Sample: P = 1.45 GPa _database_code_amcsd 0006867 17.481 17.625 7.345 90 116.73 90 C2/m atom x y z occ Uiso NaCS1 .1503 0 .675 .43 .043 KCS1 .1503 0 .675 .10 .043 CaCS1 .1503 0 .675 .1625 .043 BaCS1 .1503 0 .675 .0075 .043 SrCS1 .1503 0 .675 .2175 .043 CaCS2 .033 .5 .185 .5 .028 AlT1 .1818 .164 .101 .192 .014 SiT1 .1818 .164 .101 .808 .014 SiT2 .2071 .409 .490 .637 .019 AlT2 .2071 .409 .490 .363 .019 SiT3 .2072 .189 .716 .801 .012 AlT3 .2072 .189 .716 .199 .012 SiT4 .0606 .295 .403 .806 .018 AlT4 .0606 .295 .403 .194 .018 SiT5 0 .205 0 .666 .018 AlT5 0 .205 0 .334 .018 O1 .191 .5 .451 .04 O2 .229 .120 .607 .020 O3 .182 .144 .884 .031 O4 .248 .105 .264 .020 O5 0 .329 .5 .029 O6 .087 .146 .085 .027 O7 .127 .240 .550 .045 O8 .003 .261 .185 .029 O9 .207 .257 .170 .033 O10 .112 .367 .376 .036 Wat1 .223 .5 -.003 .04 Wat2 .079 0 .875 .08 Wat3 .078 .408 .948 .06 Wat4 0 .5 .5 .07 Wat5 0 .084 .5 .21 Wat6 .101 0 .321 .07