Composition: Uranium oxide
Nomenclature: Named after uranium, the primary constituent of the mineral.
Industrial Uses: Ore of uranium.
Additional Notes: Uraninite is radioactive due to its uranium content. Also referred to as "gummite." The amorphous, impure variety of uraninite is referred to as "pitchblende."
Zaire : Scott 1105 : 1 zaire : 13 Feb 1983