Gummite

2 definitions found

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

  Gummite \Gum"mite\, n. [So called because it occurs in rounded
     or flattened pieces which look like gum.] (Min.)
     A yellow amorphous mineral, essentially a hydrated oxide of
     uranium derived from the alteration of uraninite.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  gummite
       n : a gummy orange mixture of uranium oxides and silicates
           occurring naturally in the hydration and oxidation of
           pitchblende