Bromellite
Xu Y N, Ching W Y
Physical Review B48 (1993) 4335-4351
Electronic, optical, and structural properties of some wurtzite crystals
_database_code_amcsd 0015173
2.698 2.698 4.380 90 90 120 P6_3mc
atom   x   y    z
Be   2/3 1/3    0
O    2/3 1/3 .378