Cochise College          Photos of Minerals

                          Geology Home Page                

                          Roger Weller, geology instructor

                          wellerr@cochise.edu
                                  copyright 2010-R.Weller

 

Mineral Information on:
argentite

Chemical Group:   sulfide

Chemical Formula:   
Ag2S

Color:   blackish lead-gray                       Streak:

 

Hardness:     2.5            Specific Gravity:   7.2 to 7.4               

Cleavage:

 

Crystal Forms: Isometric System; cubes and octahedrons

Habits: dendritic earthy masses

Mineral Associations:

Identifying Characteristics:

Uses:  silver ore

Occurrences:  Mexico, Nevada

Toxicity:      when-swallowed-                            when inhaled-

Additional Information:  also known as silver glance