Umangite
Heyding R D, Murray R M
Canadian Journal of Chemistry 54 (1976) 841-848
Crystal structures of Cu1.8Se, Cu3Se2, alpha- and gamma=CuSe, CuSe2, and CuSe2II
Locality: Beaverlodge Region, Saskatchewan, Canada
_database_code_amcsd 0012164
6.4024 6.4024 4.2786 90 90 90 P-42_1m
atom    x    y    z Biso
Cu1     0    0    0  2.3
Cu2  .647 .853 .219  2.3
Se   .272 .772 .264  1.9