| gummite | <chemical> A yellow amorphous mineral, essentially a hydrated oxide of uranium derived from the alteration of uraninite. Origin: So called because it occurs in rounded or flattened pieces which look like gum. Source: Websters Dictionary (01 Mar 1998) |
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| gummite | a gummy orange mixture of uranium oxides and silicates occurring naturally in the hydration and oxidation of pitchblende |
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