> Dear Ritvelders, Does anyone know the crystallographic information >(S.G, atomic positions, lattice parameters and etc) of Ca Al2 O4, Thanks >in advance, Yong-Il Kim [EMAIL PROTECTED] Hello, Informations from the 'Crystal Data, Determinative tables' by Donnay and Ondik: Ca Al2 O4, P2(1)/n, Z=12, a=8.69(2) b=8.09(2) c=15.21(2) beta=90.13�, 0 0 -1/0 -1 0/-1 0 0 (habitus), reference: Dougill, Nature, 180, 292, (1957) Marc Hostettler
