KNaCa2Si8O19*5H2O Cadoni M, Ferraris G European Journal of Mineralogy 21 (2009) 485-493 Two new members of the rhodesite mero-plesiotype series close to delhayelite and hydrodelhayelite: synthesis and crystal structure Note: Sample TRO3 _database_code_amcsd 0007280 6.5850 23.776 7.0250 90 90 90 Pn2_1m atom x y z occ Uiso K .0575 .2525 0 .041 Na .497 .0018 .237 .5 .065 Ca1 .0228 -.0023 0 .016 Ca2 -.0179 .0095 .5 .012 Si1 .2133 .1188 .2158 .014 Si2 .2123 .3888 .2217 .013 Si3 .9607 .1861 .5 .006 Si4 .9565 .3196 .5 .017 Si5 .5744 .1119 .5 .016 Si6 .5708 .3949 .5 .010 O1 .0954 .0612 .2419 .019 O2 .1441 .4518 .2407 .037 O3 .0973 .1726 .3184 .024 O4 .0599 .3424 .3070 .031 O5 .261 .1366 0 .023 O6 .2302 .3670 0 .006 O7 .4288 .1318 .3204 .025 O8 .4430 .3923 .3069 .032 O9 .736 .1614 .5 .064 O10 .735 .3428 .5 .023 O11 .9405 .2539 .5 .030 O12 .680 .4531 .5 .044 O13 .657 .0514 .5 .055 Wat1 .708 .0528 0 .060 Wat2 .660 .4691 0 .068 Wat3 .456 .2603 .207 .5 .056 Wat4 .698 .3315 0 .087 Wat5 .750 .1730 0 .076