Calcybeborosilite-(Y) Rastsvetaeva R K, Pushcharovsky D Y, Pekov I V, Voloshin A V Kristallografiya 41 (1996) 235-239 Crystal structure of calcybeborosilite and its place in the datolite-gadolinite isomorphous series _database_code_amcsd 0014195 9.846 7.600 4.766 90 90.11 90 P2_1/a atom x y z occ Biso CaM1 .3310 .1066 .9975 .45 1.44 YM1 .3310 .1066 .9975 .42 1.44 CeM1 .3310 .1066 .9975 .13 1.44 FeM2 0 0 0 .25 1.7 MnM2 0 0 0 .05 1.7 BT2 .339 .414 .544 .5 1.6 BeT2 .339 .414 .544 .5 1.6 SiT1 .0808 .2705 .4835 1.49 O1 .033 .406 .244 2.1 O2 .453 .292 .674 2.3 O3 .202 .337 .684 2.4 O4 .145 .098 .307 2.6 O5 .331 .410 .234 .35 1.9 OH5 .331 .410 .234 .65 1.9