Cassiterite

2 definitions found

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

  Cassiterite \Cas*sit"er*ite\, n. [Gr. ? tin.] (Min.)
     Native tin dioxide; tin stone; a mineral occurring in
     tetragonal crystals of reddish brown color, and brilliant
     adamantine luster; also massive, sometimes in compact forms
     with concentric fibrous structure resembling wood ({wood
     tin}), also in rolled fragments or pebbly ({Stream tin}). It


     is the chief source of metallic tin. See {Black tin}, under
     {Black}.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:

  cassiterite
       n : a hard heavy dark mineral that is the chief source of tin