The Collaborative International Dictionary of English v.0.48:

Torbernite \Tor"bern*ite\, n. [So named after Torber Bergmann, a
   Swedish chemist.] (Min.)
   A mineral occurring in emerald-green tabular crystals having
   a micaceous structure. It is a hydrous phosphate of uranium
   and copper. Called also copper uranite, and chalcolite.
   [1913 Webster]