Uranium ore from the Shinkolobwe mine in Katanga.
Schoepite-Curite-Uraninite specimen. The steel-gray matrix is pure Uraninite or Pitchblende with density 10.6 g/cm³.
The yellow mineral is Schoepite, also an uranium ore.
The red-ish mineral is Curite, a lead uranium oxide mineral.
Ex-Carnegie Museum of Natural History, removed from display because "too hot." Size: 14.0 x 10.0 x 7.2 cm.
The high grade of the ore (65 %) was partly the result of it being handpicked.
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