Takedaite Schuckmann W Neues Jahrbuch fur Mineralogie, Monatshefte 1969 (1969) 142-144 Zur kristallstruktur des calcium-borates Ca3(BO3)2 Locality: synthetic _database_code_amcsd 0014736 8.631 8.631 11.855 90 90 120 R-3c atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Ca .35806 0 .25 .00178 .00222 .00136 .00111 .00016 .00033 B 0 0 .1178 .00233 .00233 .00101 .00117 0 0 O .1658 .0127 .11509 .00235 .00281 .00225 .00148 -.00059 -.00010