Look up: uraninite

1. uraninite
   [n] - a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. uraninite
   <chemical> A mineral consisting chiefly of uranium oxide with some lead, thorium, etc, occurring in black octahedrons, also in masses with a pitchlike luster; pitchblende. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
3. uraninite
   pitchblende noun a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium; uraninite in massive form is called pitchblende which is the chief uranium ore
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
4. Uraninite
   • (n.) A mineral consisting chiefly of uranium oxide with some lead, thorium, etc., occurring in black octahedrons, also in masses with a pitchlike luster; pitchblende.
   Found on http://thinkexist.com/dictionary/meaning
   
   
5. uraninite
   a major ore mineral of uranium, uranium dioxide (UO2). Uraninite usually forms black, gray, or brown crystals that are moderately hard and generally ... [5 related articles]
   Found on http://www.britannica.com/eb/a-z/u/16
   
   
6. uraninite
   uraninite: see pitchblende.
   Found on http://www.infoplease.com/ce6/sci/A09199
   
   
7. Uraninite
   Uraninite is a radioactive important source of uranium. It consists chiefly of uranium oxide with some lead, thorium, etc. It occurs in pegmatites and veins in granite; also as sedimentary deposits. It is found in black octahedrons and also in masses with a pitch like lustre. It has a relative hardness of 6.
   Found on http://www.probertencyclopaedia.com/brow
   
   
8. uraninite
   Type: Term Pronunciation: yū-ran′i-nīt Synonyms: pitchblende
   Found on http://www.medilexicon.com/medicaldictio
   
   
9. uraninite
   Uranium oxide, UO₂, an ore mineral of uranium, also known as pitchblende when occurring in massive form. It is black or brownish-black, very dense, and radioactive. It occurs in veins and as massive crusts, usually associated with granite rocks
   Found on http://www.talktalk.co.uk/reference/ency
   
   
10. Uraninite
    `Uraninite` is a radioactive, uranium-rich mineral and ore with a chemical composition that is largely UO₂, but also contains UO₃ and oxides of lead, thorium, and rare earth elements. It is most commonly known as `pitchblende` (from pitch, because of its blac...
    Found on http://en.wikipedia.org/wiki/Uraninite