Rickardite
Forman S A, Peacock M A
American Mineralogist 34 (1949) 441-451
Crystal structure of rickardite, Cu4-xTe2
_database_code_amcsd 0000047
3.98 3.98 6.12 90 90 90 P4/nmm
atom x  y    z occ
Cu1  0 .0    0
Cu2  0 .5 .270  .4
Te   0 .5 .715