| Hazard Information | Back Directory | [Physical properties]
Habit: amorphous botryoidal mass.
Color: black.
Luster: submetallic. Contains up to
20 wt.% PbO from decaying. | [Uses]
Source of uranium and radium. | [Definition]
A natural phosphide of uranium usually partly oxidized to UO3 with variable amounts of lead, radium, thorium, rare-earth metals, helium, argon, nitrogen. Pitchblende is an important variety. It occurs in Colorado, Utah, South Africa, Canada, Europe, the former U.S.S.R., Australia, Zaire. | [Definition]
A
black mineral consisting mostly of uranium(
VI) oxide, UO3. It is the chief ore of
uranium and radium. | [Definition]
uraninite: A mineral form of uranium(IV) oxide, containing minuteamounts of radium, thorium, polonium,lead, and helium. When uraniniteoccurs in a massive form with apitchy lustre it is known as pitchblende,the chief ore of uranium.Uraninite occurs in Saxony (Germany),Romania, Norway, the UK(Cornwall), E Africa (Democratic Republicof Congo), USA, and Canada(Great Bear Lake). |
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