McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams

Home » Minerals » Uraninite

Uraninite


Mineral Properties and Uses



What is Uraninite?



Uraninite is an oxide of uranium. It occurs in granite pegmatites, occasionally in hydrothermal veins, and less often in sandstones. It is the primary ore of uranium. It has a very high specific gravity and is radioactive. Uraninite is also known as "pitchblende".


Physical Properties of Uraninite

Chemical Classification oxide
Color brownish black to black
Streak brownish black, grayish
Luster submetallic to pitchlike
Diaphaneity opaque
Cleavage none
Mohs Hardness 5 to 6
Specific Gravity 6.5 to 10.0
Diagnostic Properties radioactivity, color, luster, specific gravity, lack of cleavage
Chemical Composition Uranium Oxide , UO2
Crystal System isometric
Uses primary ore of uranium, used to prepare fuel for nuclear reactors




Find it on Geology.com




More from Geology.com


gem photos
100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure.
Coal
Coal Through a Microscope: Coal is more than a black rock. It's THE most interesting rock.
Salt Glaciers
Salt Glaciers are masses of salt that flow downslope under their own weight.
Turquoise
Turquoise - A blue to bluish-green gem material that has been used for over 6000 years.
Methane Hydrate
Methane Hydrate deposits contain more fuel value than all other fossil fuels combined.
Corundum
Corundum is the third hardest mineral. It is also the mineral of ruby and sapphire.
Helium
Helium is a byproduct of the natural gas industry. Its most important use is in MRI.
Astronomy
Astronomy: Fantastic images and articles about solar system and deep-space astronomy.




More Minerals
  Minerals
  Fluorescent Minerals
  Mineral Identification Chart
  Find Minerals and Gems
  Mohs Hardness Scale
  Gold
  Kyanite
  Quartz




© 2005-2014 Geology.com. All Rights Reserved.
Images, code and content of this website are property of Geology.com. Use without permission is prohibited. Pages on this site are protected by Copyscape.