Covellite

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Covelline \Co*vel"line\ (k?-v?l"l?n), Covellite \Co*vel"lite\
     (-l?t), n. [After Covelli, the discoverer.] (Min.)
     A native sulphide of copper, occuring in masses of a dark
     blue color; -- hence called {indigo copper}.
     [1913 Webster]