Lanthanum
Spedding F H, Daane A H, Herrmann K W
Acta Crystallographica 9 (1956) 559-563
The crystal structures and lattice parameters of high-purity scandium,
yttrium and the rare earth metals
Locality: synthetic
Note: sample 99.8% pure
_database_code_amcsd 0009168
3.770 3.770 12.159 90 90 120 P6_3/mmc
atom   x   y   z
La   1/3 2/3 .25