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


Fluorescent Minerals
Fluorescent Minerals glow with spectacular colors under ultraviolet light.
Iris Agate
Iris Agate produces surprising colors when light passes through its thin bands.
uses of gold
The Many Uses of Gold: Unique properties make gold one of the most useful metals.
Plate Tectonics
Plate Tectonics: Articles and maps about plate tectonics and the interior of Earth.
Dallol Volcano
Strange Volcanic Landscape! Photos of Dallol Volcano - an explosion crater in Ethiopia.
Oil and Gas
Oil and Gas: Articles about oil and natural gas in the US and around the world.
Mount Cleveland
Mount Cleveland is an active volcano in the Aleutian Islands and a threat to air traffic.
Coal
Coal Through a Microscope: Coal is more than a black rock. It's THE most interesting rock.




Mineral Information
 Andalusite
 Anhydrite
 Apatite
 Arsenopyrite
 Augite
 Azurite

 Barite
 Bauxite
 Beryl
 Biotite
 Bornite

 Calcite
 Cassiterite
 Chalcocite
 Chalcopyrite
 Chlorite
 Chromite
 Chrysoberyl
 Cinnabar
 Clinozoisite
 Copper
 Cordierite
 Corundum
 Cuprite
 Diamond
 Diopside
 Dolomite

 Enstatite
 Epidote

 Fluorite

 Galena
 Garnet
 Glauconite
 Gold
 Graphite
 Gypsum

 Halite
 Hematite
 Hornblende

 Ilmenite

 Jadeite

 Kyanite
 Limonite

 Magnesite
 Magnetite
 Malachite
 Marcasite
 Molybdenite
 Monazite
 Muscovite

 Nepheline
 Nephrite

 Olivine
 Orthoclase

 Plagioclase
 Prehnite
 Pyrite
 Pyrophyllite
 Pyrrhotite

 Quartz

 Rhodochrosite
 Rhodonite
 Rutile
 Scapolite
 Serpentine
 Siderite
 Sillimanite
 Silver
 Sodalite
 Sphalerite
 Spinel
 Spodumene
 Staurolite
 Sulfur
 Sylvite

 Talc
 Titanite
 Topaz
 Tourmaline
 Turquoise

 Uraninite

 Witherite
 Wollastonite

 Zircon
 Zoisite


Diamonds Don't Form From Coal
The Only Diamond Mine in the USA
Mineral Rights
Rock Type Photo Gallery
Who Owns The Arctic?
San Andreas Fault - Zoom In
What Causes a Tsunami?
What is a Debris Flow?




© 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.