Cochise College          Photos of Minerals

                          Geology Home Page                

                          Roger Weller, geology instructor

                                  copyright 2007-R.Weller


Mineral Information on:

Chemical Group:    oxide  

Chemical Formula: 
UO2   Uraninite is radioactive!!

Color:  steely black, brownish black, black                        Streak:  brownish black


Hardness:   5 to 6              Specific Gravity:   10.95                Fracture:  uneven to conchoidal

Tenacity:  brittle    
Luster" pitchy


Crystal Forms: Isometric system
     Crystals are cubic, or octahedral

Mineral Associations:

Identifying Characteristics:  color, density, radioactivity

Uses:   ore  of uranium


Additional Information: