gummite(redirected from Pittinite)
Also found in: Thesaurus, Encyclopedia.
An orange-red to grayish yellow mixture of several uranium oxides, silicates, and salts occurring naturally in the oxidation and hydration of uraninite.
[German Gummit, from Gummi, gum, from Middle High German, from Medieval Latin, from Latin; see gum1.]
(Minerals) an orange or yellowish amorphous secondary mineral consisting of hydrated uranium oxides
Switch to new thesaurus
|Noun||1.||gummite - a gummy orange mixture of uranium oxides and silicates occurring naturally in the hydration and oxidation of pitchblende|
mixture - (chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)