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April 20, 2011
Geology Word of the Week: U is for Uraninite
Botryoidal uraninite. Image taken from wikipedia commons here. def. Uraninite:A uranium-rich mineral with the formula UO2 (uranium oxide). Often, part of the uraninite is oxidized with the formula UO3. Uraninite is the primary ore for uranium and can also be mined for other elements such as radium, thorium, and lead, which are decay products of radioactive uranium. Uraninite deposits are generally a dark steel black with a slight metallic luster. …