The most common uranium minerals are uraninite (pitchblende) and carnotite. Also uranium is a by-product in the mining of gold, vanadium, phosphates.
Uranium Oxide- U3O8
uranium
Natural polonium exist in uranium and thorium ores.
The primary uranium ore mineral is uraninite (UO2) or pitchblende (UO3, U2O5), commonly collectively refered to as U3O8(the most stable form). A range of other uranium minerals can be found in various deposits.
Uranium is found in many countries but most production comes from Australia and Canada
== You'll find that uranium-235 is the most commonly used radionucliee, and plutonium-239 can be used as well, though the latter is selected as a fuel choice much less often. An extremely distant third is uranium-233. Links can be found below.
Uranium
These elements are found after uranium.
Uranium concentration in the earth crust: ca. 2,5 ppm (mg/kg) Uranium concentration in the sea water: ca. 3 ppb (micograms/kg)
The most common minerals of uranium are uraninite and carnotite.
Uranium
no, it is most commonly found as a compound