tennantite

1 definition found

tennantite - Collaborative International Dictionary of English v.0.48 :

  Tennantite \Ten"nant*ite\, n. [Named after Smithson Tennant, an
     English chemist.] (Min.)
     A blackish lead-gray mineral, closely related to
     tetrahedrite. It is essentially a sulphide of arsenic and
     copper.
     [1913 Webster]